Question

Решить уравнение 1) 6х+8х-7х=714; 2) 23х-19х+5х=1827; 3) 11х-6х+17=2042; 4) 5х+3х-47=6401

Answer 1

1) 
6х+8х-7х=714;
7x=714
x=714:7
x=102


2)
23х-19х+5х=1827;
9x = 1827
x= 1827:9
x=203

3)
11х-6х+17=2042;
5x+17=2042
5x=2042-17
5x=2025
x=405

4)
 5х+3х-47=6401
8x-47=6401
8x=6401+47
8x=6448
x=6448:8
x=806