Question

Помогите решить: 1) 2x-3=-8 2) 2(x+3)=7 3) (x-9)=6

Answer 1

2x-3=-8
2х=-8+3
2х=-5
х=-5/2
х=-2.5

2(x+3)=7
2х+6=7
2х=7-6
2х=1
х=1/2
х=0.5

(x-9)=6
х-9=6
х=6+9
х=15