Question

a)2x+3x+4=14 б)7z-z+5=11

Answer 1

2х+3х+4=14
5х+4=14
5х=14-4
5х=10
х=10:5
х=2


7z-z+5=11
6z+5=11
6z=11-5
6z=6
z=6^6
z=1

Answer 2

cgc

Answer 3

2х+3х+4=14
2х+3х=14-4
5х=10
х=10/5
х=2

7z-z+5=11
7z-z=11-5
6z=6
z=6/6
z=1