5- (x-2) = 4x +17 10x + 2,5 = 12 - (10x - 10,5) 87-2x = 2(4x+56) 3(x + 1) + 11 = 34 - 2x 4+ 5(2x+1)= 39 2x + 8 + x = 13 -x + 19 -12(2-x) = 6x + 48 357(5-x) = x + 12 49x = 270- (x +20) даю 30 балов СРРЧНО
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5- (x-2) = 4x +17 10x + 2,5 = 12 - (10x - 10,5) 87-2x = 2(4x+56) 3(x + 1) + 11 = 34 - 2x 4+ 5(2x+1)= 39 2x + 8 + x = 13 -x + 19 -12(2-x) = 6x + 48 357(5-x) = x + 12 49x = 270- (x +20)=250