8=20-4c

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Solution for 8=20-4c equation:


Simplifying
8 = 20 + -4c

Solving
8 = 20 + -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.
8 + 4c = 20 + -4c + 4c

Combine like terms: -4c + 4c = 0
8 + 4c = 20 + 0
8 + 4c = 20

Add '-8' to each side of the equation.
8 + -8 + 4c = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 4c = 20 + -8
4c = 20 + -8

Combine like terms: 20 + -8 = 12
4c = 12

Divide each side by '4'.
c = 3

Simplifying
c = 3

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