Question

Eight years ago, Clyde was 7 years old. Which equation represents Clyde age now?

A. 8+C=7
B. 7+C=8
C. 8-7=C
D. C-8=7

Answer 1

D.

Explanation:

Clyde's present age is 7+8, because he has aged 8 years since he was 7.

So, the equation would be C=7+8.

However, that equation isn't listed so you need to move some numbers around.

If you subtract 8 from both sides of the equation C=7+8, you get C-8=7, which is D.

Hope this helps! :)