Ответы на вопрос:
1) 2х-14 =3; 2х = 14+3; 2х =17; х= 8,5 2) 8 -12х = -7х +10; -12х +7х =10 -8; -5х =2; х = - 2/5 3) -3х +4 = -10 -35 -5х; -3х+5х = -10-35-4; 2х = - 49; х = - 24,5
2(x-7)=32x-14=32x=14+32x=17x=17\2=8 1\2 4(2-3x)=-7x+108-12x=-7x+10-12x+7x=10-8-5x=25x=-2x=- 2\5 = - 0.4 -3x+4=-10+5(-7-x) -3x+4=-10-35-5x -3x+5x=-10-35-4 2x=-49 x= - 49\2 = 24 1\2 ====================================
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