Ответ:5,4
-30+3=-2х+7х
-27=5х
х=-27:5
х=-5,4
3=30−2x+7x
3=30+5x
3−30=5x
−27=5x
-27 / 5 = x
x= - 27 / 5
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Ответ:5,4
-30+3=-2х+7х
-27=5х
х=-27:5
х=-5,4
3=30−2x+7x
3=30+5x
3−30=5x
−27=5x
-27 / 5 = x
x= - 27 / 5