Question

решите уравнение
(а+30)×3=50
2х+(х-7)×6=54
(х-7)×6+2х=6

Answer 1

1. (а+30)*3=50
3а+90=50
3а=50-90
3а=-40
а=-40/3

2. 2х+(х-7)*6=54
2х+6х-42=54
8х=54+42
8х=96
х=12

3.(х-7)*6+2х=6
6х-42+2х=6
8х=6+42
8х=48
х=6