-9(c-4)=-(c+20)

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Solution for -9(c-4)=-(c+20) equation:


Simplifying
-9(c + -4) = -1(c + 20)

Reorder the terms:
-9(-4 + c) = -1(c + 20)
(-4 * -9 + c * -9) = -1(c + 20)
(36 + -9c) = -1(c + 20)

Reorder the terms:
36 + -9c = -1(20 + c)
36 + -9c = (20 * -1 + c * -1)
36 + -9c = (-20 + -1c)

Solving
36 + -9c = -20 + -1c

Solving for variable 'c'.

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

Add 'c' to each side of the equation.
36 + -9c + c = -20 + -1c + c

Combine like terms: -9c + c = -8c
36 + -8c = -20 + -1c + c

Combine like terms: -1c + c = 0
36 + -8c = -20 + 0
36 + -8c = -20

Add '-36' to each side of the equation.
36 + -36 + -8c = -20 + -36

Combine like terms: 36 + -36 = 0
0 + -8c = -20 + -36
-8c = -20 + -36

Combine like terms: -20 + -36 = -56
-8c = -56

Divide each side by '-8'.
c = 7

Simplifying
c = 7

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