Question

Calcule o valor de x nas equações:
7x+5-x+8=31

Answer 1

7x + 5 - x + 8 = 31
6x + 13 = 31
6x = 31 - 13
6x = 18
x = 3

Answer 2

7x-x=31-5-8
6x=18
x=18/6
x=3