Question

WILL GIVE BRAINLIEST!!

Answer 1

The easiest way to do this is to plug everything in the left side and see what equals 10, but you could also solve for c (which I will show you).
2c+5(c-5)=10
2c+5c-25=10
7c-25=10
7c=35
c=5

Answer 2

I say the answer is 5