2х-3(4х+1)=7+(2х+1)
2x-12x-3=7+2x+1
2x-12x-2x=7+3+1
-12x=11
x=-0,916
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2х-3(4х+1)=7+(2х+1)
2x-12x-3=7+2x+1
2x-12x-2x=7+3+1
-12x=11
x=-0,916