3x + x + 5 + x = 45:) реши !!!!!!!!!!!!!

Question

3x + x + 5 + x = 45
:) реши !!!!!!!!!!!!!

Answer 1

5х + 5 = 45
5х = 45 - 5
5х = 40
х = 40/5
х = 8

Answer 2

5x=45/5
5x=9
x=9/5
x=1,8