配套习题-解一元一次方程的易错点 -【青果学院】

本课配套习题挑战模式1/5

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难度系数：

1.方程

去分母得（　　）

A: 2y-y+1=4

B: 2y-y-1=4

C: 2y-y-1=1

D: 2y-（y-1）=1

提示1：IOi/meaYr+S4gOS4quW4puWIhuavjeeahOaWueeoi++8jOaJgOS7peimgeWFiOWOu+WIhuavje+8jOWOu+WIhuavjeimgeWcqOaWueeoi+eahOS4pOi+ueWQjOS5mOS7peWIhuavjeeahOacgOWwj+WFrOWAjeaVsDTvvIzovr7liLDljrvliIbmr43nmoTnm67nmoQ=
提示2：IOWOu+WIhuavjeaXtuetieW8j+WPs+i+ueeahDHkuI3opoHlv5jorrDkuZjku6U0
提示3：IOWOu+WIhuavjeaXtuetieW8j+W3pui+ueS4jeimgeW/mOiusOWPmOWPtw==
答案：QQ==
PGRpdj7op6PvvJrkuKTovrnlkIzkuZjku6U05b6X77yaMnkt77yIeS0x77yJPTQ8YnI+5Y675ous5Y+35b6X77yaMnkteSsxPTQ8YnI+5pWF6YCJQS4gPC9kaXY+

本课配套习题挑战模式2/5

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2.下列解方程去分母正确的是（　　）

A: 由得2x-1=3-3x

B: 由得4（x-2）-2（3x-2）=-4

C: 由得3（x+1）=2x-（3x-1）

D: 由得3x+1=10-2x+6

提示1：IOagueaNruetieW8j+eahOaAp+i0qDLvvIxB5pa556iL55qE5Lik6L656YO95LmY5LulNu+8jELmlrnnqIvnmoTkuKTovrnpg73kuZjku6U077yMQ+aWueeoi+eahOS4pOi+uemDveS5mOS7pTbvvIxE5pa556iL55qE5Lik6L656YO95LmY5LulMTA=
提示2：IOWvueW6lOWIsOavj+S4qumAiemhue+8jOWOu+WIhuavjeWQjuWIpOaWreWNs+WPrw==
提示3：IOazqOaEj+S4jeimgea8j+S5mOaVtOaVsOmhue+8jOS5n+S4jeimgeW/mOiusOWPmOWPtw==
答案：Qw==
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

本课配套习题挑战模式3/5

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3.下列计算正确的是（　　）

A: 由-5=3x得x=-

B: 由得x=-1

C: 由得

D: 由得

提示1：IOagueaNruetieW8j+eahOaAp+i0qOaWueeoi+eahOS4pOi+uemDvemZpOS7pTPljbPlj6/liKTmlq1B77yb5qC55o2u562J5byP55qE5oCn6LSo5pa556iL55qE5Lik6L656YO95LmY5LulPGltZyB3aWR0aD0xNSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8xMi9DQi9yQkFDRTFNRjUzNkFOa3o4QUFBQlBET3VWR2syNzQucG5nIj7ljbPlj6/liKTmlq1C
提示2：IOaWueeoi+eahOS4pOi+uemDveS5mOS7pTPljbPlj6/liKTmlq1D77yb5pa556iL55qE5Lik6L656YO95LmY5LulNO+8jOWOu+aLrOWPt+WQjuWNs+WPr+WIpOaWrUQu
答案：RA==
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

本课配套习题挑战模式4/5

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难度系数：

4.研究下面解方程

的过程
去分母，得1+4﹙2x-3﹚=5x-1-3x①
去括号，得1+8x-12=2x-1②
移项，得8x-2x=-1-1+12③
合并同类项，得6x=10④
系数化为1，得x=

⑤
对于上面的解法，你认为（　　）

A: 完全正确

B: 变形错误的是①

C: 变形错误的是②

D: 变形错误的③

提示1：IOacrOmimOiAg+afpeS6huino+S4gOWFg+S4gOasoeaWueeoiy4g6Kej5LiA5YWD5LiA5qyh5pa556iL55qE5LiA6Iis5q2l6aqk5piv77ya4pGg5Y675YiG5q+N77yM5Zyo5pa556iL55qE5Lik6L656YO95LmY5Lul5ZCE5YiG5q+N55qE5pyA5bCP5YWs5YCN5pWw77yb6L+Z5LiA5q2l5rOo5oSP5LiN6KaB5ryP5LmY
提示2：IOKRoeWOu+aLrOWPt++8jOWFiOWOu+Wwj+aLrOWPt++8jOWGjeWOu+S4reaLrOWPt++8jOacgOWQjuWOu+Wkp+aLrOWPt++8m+i/meS4gOatpeaLrOWPt+WJjemdouaciei0n+WPt+eahO+8jOazqOaEj+aLrOWPt+mHjOmdoueahOWQhOmhuemDveimgeWPmOWPtw==
提示3：IOKRouenu+mhue+8jOaKiuWQq+acquefpeaVsOeahOmhueenu+WIsOaWueeoi+eahOS4gOi+ue+8jOS4jeWQq+acquefpeaVsOeahOmhueenu+WIsOaWueeoi+eahOWPpuS4gOi+ue+8jOW5tuaKiuaWueeoi+WMluS4umF4PWLvvIhh4omgMO+8ieeahOW9ouW8j++8m+i/meS4gOatpeazqOaEj+enu+mhueS4gOWumuimgeWPmOWPtw==
提示4：4pGj5pa556iL5Lik6L655ZCM5pe26Zmk5Lul5pyq55+l5pWw55qE57O75pWwYe+8jOW+l+WIsOaWueeoi+eahOino+S4ung9LTxpbWcgd2lkdGg9OSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8xMi9DQy9yQkFDRTFNRjU0UGlzeC1xQUFBQlVqYkxFT2swNjcucG5nIj4u
答案：Qg==
PGRpdj7op6PvvJrnlLHljp/mlrnnqIvljrvliIbmr43vvIzlvpc8YnI+MSs077yIMngtM++8iT01eC0xKzN44pGgPGJyPuaVheacrOatpeWPmOW9oumUmeivr++8mzxicj7mlYXpgIlCLiA8L2Rpdj4=

本课配套习题挑战模式5/5

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5.下列方程的变形中正确的是（　　）

A: 由x+5=6x-7得x-6x=7-5

B: 由-2（x-1）=3得-2x-2=3

C: 由=1得

D: 由得2x=-12

提示1：IOWIhuWIq+WvueaJgOe7meeahOWbm+S4quaWueeoi+WIqeeUqOetieW8j+aAp+i0qOi/m+ihjOWPmOW9ou+8jOWPr+S7peaJvuWHuuato+ehruetlOahiA==
提示2：IOazqOaEj+enu+mhueimgeWPmOWPt++8jOWOu+aLrOWPt+aXtuS5n+imgeazqOaEj+eci+aYr+WQpuimgeWPmOWPtw==
答案：RA==
PGRpdj7op6PvvJpB44CB55SxeCs1PTZ4LTflvpd4LTZ4PS03LTXvvIzmlYXplJnor6/vvJs8YnI+QuOAgeeUsS0y77yIeC0x77yJPTPlvpctMngrMj0z77yM5pWF6ZSZ6K+v77ybPGJyPkPjgIHnlLE8aW1nIHdpZHRoPTI1IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0YwLzBCL3JCQUNGRk1GNTRlZzdzX3FBQUFCalFSZXh3azQ1MC5wbmciPj0x5b6XPGltZyB3aWR0aD03MSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC9GMC8wQi9yQkFDRkZNRjU0ZmdNVVlYQUFBQ0VEYk4xcTAxMDAucG5nIj7vvIzmlYXplJnor6/vvJs8YnI+ROOAgeato+ehri4gPGJyPuaVhemAiUQuIDwvZGl2Pg==

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本课配套习题挑战模式1/5

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本课配套习题挑战模式3/5

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