Question

alguem pode me dar as respostas?

Answer 1

a) x - 3 = 5
x = 5 + 3
x = 8
b) 6x - 4 = 2x + 8
6x - 2x = 8 + 4
4x = 12
x = 3
c) x + 2 = 7
x = 7 - 2
x = 5
d) 4 = x + 12
x + 12 = 4
x = 4 - 12
x = -8
e) 17x - 2 + 4 = 10 + 5x
17x - 5x = 10 + 2 - 4
12x = 8
x = 8/12
x = 2/3