Помогите пожалуйста 8х-3=2х+9 2(3-2х)+1=-4+х (Х-2)•(х+3)=0 (12у+18)•(1,6-0,2у)=0 6х+4+2х=3х-9 1,5•6²-2³
1. 8х-3=2х+9 8х-2х = 9+3 6х = 12 /:6 х = 2 2. 2(3-2х)+1 = -4+х 6-4х+1 = -4+х -4х-х = -4-6-1 -5х = -11 /:-5 х = 2,2 3. --- 4. --- 5. 6х+4+2х = 3х-9 6х+2х-3х = -9-4 5х = -13 /:-5 х = 2,6 6. 1,5*6²-2³ 1,5*36-8 46