SOLUTION: Cesar is 70 years younger than Holly. 7 years ago, Holly's age was 3 times Cesar's age. How old is Cesar now?

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Question 1095907: Cesar is 70 years younger than Holly. 7 years ago, Holly's age was 3 times Cesar's age. How old is Cesar now?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
system%28h-c=70%2Ch-7=3%28c-7%29%29
-
h-7=3c-21
h-3c=-14

Solve system for h and c:
system%28h-c=70%2Ch-3c=-14%29

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Cesar is 70 years younger than Holly. 7 years ago, Holly's age was 3 times Cesar's age. How old is Cesar now?
Let Cesar's age be C

Then Holly's is: C + 70

We then get: C + 70 - 7 = 3(C - 7)

C + 63 = 3C - 21

C - 3C = - 21 - 63

- 2C = - 84

C, or Cesar is: