Question

x+15°=3x-5° Qual A Resposta correta?

Answer 1

x+15°=3x-5°

x-3x=-5-15

-2x = -20

2x = 20

x = 10

Answer 2

x+15= 3x-5
x-3x = -15- 5
2x=20
x=20
    2
x= 10