Question 1166098

Randall is 75 years younger than karissa. 9 years ago karissas age was 4 times Randall’s age. How old is Randall now? 
<pre>Let Randall's age be R
Then Karissa's is: R + 75
We then get: R + 75 - 9 = 4(R - 9)
R + 66 = 4R - 36
R - 4R = - 36 - 66
- 3R = - 102
Randall or {{{highlight_green(matrix(1,6, R, "=", (- 102)/(- 3), "=", 34, years-old))}}}