Complete the two-column proof. Given: x/6 +2=15 prove x = 78 a. __________ b. __________ x = 78 c. ___________

Answer 1

a. Subtract 2 from both sides: x/6 + 2 - 2 = 15 - 2
x/6 + 0 = 13
Simplify: x/6 = 13
b. Multiply both sides by 6: 6(x/6) = 6(13)
x = 78
c. This was proved in step b.