Question

решите пример: 9.5х-(3.2х+1.8х)+3.75=6.9

Answer 1

9.5х - (3.2х+1.8х) + 3.75 = 6.9
9.5х - 5х + 3.75 = 6.9
9.5х - 5х = 6.9 - 3.75
4.5х = 3.15
х = 3.15 / 4.5
х = 0.7

Answer 2

спасибо