15х-(2х-10)-(3х-10)-30-60=200 Решите.

Question

15х-(2х-10)-(3х-10)-30-60=200 Решите.

Answer 1

15х-(2х-10)-(3х-10)-30-60=200
15х-2х+10-3х+10-30-60=200
15х-2х-3х=200-10-10+30+60
10х=270
х=270:10
х=27