А) 4х-7=2х+15 б)-24+3х=9х+18

Question

А) 4х-7=2х+15 б)-24+3х=9х+18

Answer 1

4х-2х=15+7
2х=22
х=22:2
х=11
44-7=22+15
37=37



-24-18=9х-3х
-42=6х
х=-42:6
х=-7
-24-21=-63+18
-45=-45

Answer 2

A) 4x-7=2x+15
4x-2x=15+7
2x=22
x=11
b) -24+3x=9x+18
3x-9x=18+24
-6x=42
x=-7