Question

Resolver
3x - 2x = 20
-2x = 20
3x + 8 = 26
-x +15 = 10
6x = 12
5x - 4x = 20
5x - 4x = 18

Answer 1

Olá

3x - 2x = 20
x = 20

-2x = 20
-x=20/2
-x=10  *(-1)
x=-10


3x + 8 = 26
3x=26-8
3x=18
x=18/3
x=6

-x +15 = 10
-x=10-15
-x=-5  *(-1)
x=5


6x = 12
x=12/6
x=2


5x - 4x = 20
x=20


5x - 4x = 18
x=18