10-7×=3-2(5×+1) можно оовет
10-7х=3-2(5х+1) 10-7х=3-10х-2 -7х+10х=3-2-10 3х=-9 х=-3
10-7x=3-10x-2 10-7x=1-10x 10x-7x=1-10 3x = - 9 x = -9:3 x = - 3