Question

Solve for x: 1/5 (5x + 12) = 18

Answer 1

What happens is you take 1/5 and multiply it by 5x and 12. After that you get x + 2 2/5= 18 Subtract 2 and 2/5 from birth sides of the equal sign and you get x=15 and 3/5

Answer 2

Solution for 1/5(5x+12)=18 equation:
x in (-oo:+oo)

(1/5)*(5*x+12) = 18 // - 18

(1/5)*(5*x+12)-18 = 0

1/5*(5*x+12)-18 = 0

1/5*(5*x+12)-18 = 0

x-78/5 = 0

x-78/5 = 0

x-78/5 = 0 // + 78/5

x = 78/5

x = 78/5