Question

Pls help

Question is in the picture

Answer 1

c = 9-a+b

Explanation:

sqrt( a-b+c) = 3

Square each side

(sqrt( a-b+c))^2 = 3^2

a-b+c = 9

We want to solve for c

Subtract a from each side

a-b+c -a = 9-a

-b+c = 9-a

Add b to each side

-b+c+b = 9-a+b

c = 9-a+b