Question

nao to conseguindo resolve essa

Answer 1

A)
2x+3=15
2x=15-3
2x=12
x=12/2
x=6

B)
7x-1=13
7x=13+1
7x=14
x=14/7
x=2

C)
2x-4=3
2x=3+4
2x=7
x=7/2

D)
4x+2=-18
4x=-18-2
4x=-20
x=-20/4
x=-5

E)
5x-2=7+6
5x=7+6+2
5x=15
x=15/5
x=3

F)
10x+1=-4-5
10x=-4-5-1
10x=-10
x=-10/10
x=-1