5p+9c=p solve for c I am confused on how to do it

Since 5p 5⁢p does not contain the variable to solve for, move it to the right side of the equation by subtracting 5p 5⁢p from both sides. 9c = - 5 p + p 9⁢c = - 5 ⁢p + p Add - 5 p - 5 ⁢p and pp to get - 4 p - 4 ⁢p. 9c = - 4 p 9⁢c = - 4 ⁢p Divide each term by 99 and simplify.