complete the two-column proof

given: x/6+2=15
prove: x=78

2 answers

Given: x/6 + 2 = 15.
Prove: X = 78.

1. In the given Eq, substitute 78 for X. Reason: A quantity can be substituted for it's equal.

78/6 + 2 = 15,
13 + 2 = 15,
15 = 15.
amongus