Answer:
18
Explanation:
They want u to find MR, and I can do that by taking CR - CM
But first we need to know what is x
Now u know CM + MR =CR
Therefore
(3x - 2) + (x+8) = 46
3x - 2 + x + 8 = 46
4x + 6 = 46
4x = 40
x = 10
Now we know x is 10, let's just make it easier first
CM = 3x-2
= 3 (10) - 2
= 28
MR = x + 8
= 10 + 8
= 18
Now we got all our values
They want MR?
MR = x + 8
= 10 + 8
= 18
HERE U GO