6-3x-3=7-x
-3x+x=7+3-6
-2x=4
2x=-4
x=-2
Ответ:
6-3(x+1)=7-x
-3x+x=7-3
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6-3x-3=7-x
-3x+x=7+3-6
-2x=4
2x=-4
x=-2
Ответ:
6-3(x+1)=7-x
6-3x-3=7-x
-3x+x=7-3
-2x=4
x=-2