求(3x-6)除以(x-6)=5的答案《谢谢》
2个回答
展开全部
(3x-6)/(x-6)=5
解:方程两边同乘(x-6).
3x-6=5(x-6)
3x-6=5x-30
3x-5x=-30+6
-2x=-24
x=12
检验:当x=12时,(x-6)≠0
∴x=12是原方程的解 sdggsddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddffffffffffffffffffffffffffffffffffffffffeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeetttttttttttttttttttttttttttttttttttttttttttghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
解:方程两边同乘(x-6).
3x-6=5(x-6)
3x-6=5x-30
3x-5x=-30+6
-2x=-24
x=12
检验:当x=12时,(x-6)≠0
∴x=12是原方程的解 sdggsddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddffffffffffffffffffffffffffffffffffffffffeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeetttttttttttttttttttttttttttttttttttttttttttghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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