-20+2c=-7(3c+20)+15c

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Solution for -20+2c=-7(3c+20)+15c equation: 


Simplifying
-20 + 2c = -7(3c + 20) + 15c

Reorder the terms:
-20 + 2c = -7(20 + 3c) + 15c
-20 + 2c = (20 * -7 + 3c * -7) + 15c
-20 + 2c = (-140 + -21c) + 15c

Combine like terms: -21c + 15c = -6c
-20 + 2c = -140 + -6c

Solving
-20 + 2c = -140 + -6c

Solving for variable 'c'.

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

Add '6c' to each side of the equation.
-20 + 2c + 6c = -140 + -6c + 6c

Combine like terms: 2c + 6c = 8c
-20 + 8c = -140 + -6c + 6c

Combine like terms: -6c + 6c = 0
-20 + 8c = -140 + 0
-20 + 8c = -140

Add '20' to each side of the equation.
-20 + 20 + 8c = -140 + 20

Combine like terms: -20 + 20 = 0
0 + 8c = -140 + 20
8c = -140 + 20

Combine like terms: -140 + 20 = -120
8c = -120

Divide each side by '8'.
c = -15

Simplifying
c = -15

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