Уравнение (2х-8)÷5=3 (7х+3)÷6=4 (8х+3)÷7=5

Question

Уравнение (2х-8)÷5=3 (7х+3)÷6=4 (8х+3)÷7=5

Answer 1

(2х-8):5=3
2х-8=3*5
2х-8=15
2х=15+8
2х=23
х=11,5

(7х+3):6=4
7х+3=4*6
7х+3=24
7х=24-3
7х=21
х=3

(8х+3):7=5
8х+3=5*7
8х=35
х=4,375