Помогите срочно умоляю !!! очень надо ~1357 ~1358

4-2Y=Y-5 -2Y-1Y=-4-5 -3Y=-9 Y=3

1357 1)   2*(2-у) = у - 5 4 - 2у = у -5 3у = 9  у = 3 2) -4(х-2) = -6 -4х +2 = -6 -4х = -8 х =2 3) -(3х-4) = 3х -8 6х = 4+8 = 12 х = 2 4) 3(х-5) = х+3 3х - 15 =х +3 2х = 15+3 = 18 х = 9 1358 1) 0,8х-3,5 = -1,2х+0,5 2х = 4 х = 2 2) 1.3*(t-0.6) = 1.8t 1.3t - 0.78 = 1.8t 0.5t = 0.78 t =1.56 3) 1.2(x-5) = 0.2x+0.6 1.2x -0.6 = 0.2x+ 0.6 x = 1.2 4) 7.2 - (6.2 - x) = 2.2 1 + x = 2.2 x = 1.2