(-5c)-(-9c)-(-2c)+(-5c)=-13

Solution for (-5c)-(-9c)-(-2c)+(-5c)=-13 equation:

Simplifying
(-5c) + -1(-9c) + -1(-2c) + (-5c) = -13

Remove parenthesis around (-9c)
(-5c) + -1 * -9c + -1(-2c) + (-5c) = -13

Multiply -1 * -9
(-5c) + 9c + -1(-2c) + (-5c) = -13

Remove parenthesis around (-2c)
(-5c) + 9c + -1 * -2c + (-5c) = -13

Multiply -1 * -2
(-5c) + 9c + 2c + (-5c) = -13

Combine like terms: (-5c) + 9c = 4c
4c + 2c + (-5c) = -13

Combine like terms: 4c + 2c = 6c
6c + (-5c) = -13

Combine like terms: 6c + (-5c) = 1c
1c = -13

Solving
1c = -13

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Divide each side by '1'.
c = -13

Simplifying
c = -13