7(1-2x)=4+3(x-1) reshite
7 × (1 - 2х) = 4 + 3 × (х - 1) 7 - 14х = 4 + 3х - 3 - 14х - 3х = 4 - 3 - 7 - 17х = - 6 х = - 6 : (- 17) х = 6/17 ----------------