20=-4(c+10)

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Solution for 20=-4(c+10) equation: 


Simplifying
20 = -4(c + 10)

Reorder the terms:
20 = -4(10 + c)
20 = (10 * -4 + c * -4)
20 = (-40 + -4c)

Solving
20 = -40 + -4c

Solving for variable 'c'.

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

Add '4c' to each side of the equation.
20 + 4c = -40 + -4c + 4c

Combine like terms: -4c + 4c = 0
20 + 4c = -40 + 0
20 + 4c = -40

Add '-20' to each side of the equation.
20 + -20 + 4c = -40 + -20

Combine like terms: 20 + -20 = 0
0 + 4c = -40 + -20
4c = -40 + -20

Combine like terms: -40 + -20 = -60
4c = -60

Divide each side by '4'.
c = -15

Simplifying
c = -15

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