Question

qual eo caculo de 3.(x+2)+5=x+12

Answer 1

3(x+2)+5=x+12
3x+6+5=x+12
3x-x=12-6-5
2x=1
x=1/2

Answer 2

3.(x + 2) + 5 = x + 12
3x + 6 + 5 = x + 12
3x + 11 = x + 12
3x - x = 12 - 11
2x = 1
x = 1/2