Решите уравнения: 1) 10 – ((2х + 1) – х) = 3х 2) 2/3 (7-2х)= 1/2.

Question

Решите уравнения:
1) 10 – ((2х + 1) – х) = 3х
2) 2/3 (7-2х)= 1/2.

Answer 1

10-(2х+1-х)=3х
10-2х-1+х=3х
10-1=3х+2х-х
9=4х
х=9/4