Пж...............пжжжп
1) 3(x-2)=4x 3x - 6= 4x 3x - 4x = 6 -x = 6 x= -6 2) 5(y+3)=10 5y + 15 = 10 5y = 10 - 15 5y= -5 y= -5:5 y = -1 3) 3(2x-7)=9 6x - 21 = 9 6x = 21+9 6x = 30 x = 30:6 x = 5 4) 6(z-1)=18 6z - 6 = 18 6z = 18 + 6 6z = 24 z = 24:6 z = 4