题目
解下列方程.要把过程写清楚.
(1)-5x+2x-3x-x=4-6-12
(1)-5x+2x-3x-x=4-6-12
提问时间:2020-11-02
答案
(1)-5x+2x-3x-x=4-6-12
(-5+2-3-1)x= -14
-7x = -14
x=2
(-5+2-3-1)x= -14
-7x = -14
x=2
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