Question

presciso de ajuda urgenteeeeeeeee

Answer 1

10x = 120
x =120 ÷ 10
× = 12

x - 15 = -5
x = +15 -5
x=10

-2x=16
x=16÷ -2
x= -8


4x=120
x=120÷4
×=30

2x/6 = -2
x/3 = -2
x=6

5(x+2) = 25
5x+10 = 25
5x=-10 +25
5x= 15
x=15÷5
x=3

5x-1 = 7
5x =+1 +7
5x = 8
x = 8/5 (fração)