3c+9=8c-4-13c

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Solution for 3c+9=8c-4-13c equation:


Simplifying
3c + 9 = 8c + -4 + -13c

Reorder the terms:
9 + 3c = 8c + -4 + -13c

Reorder the terms:
9 + 3c = -4 + 8c + -13c

Combine like terms: 8c + -13c = -5c
9 + 3c = -4 + -5c

Solving
9 + 3c = -4 + -5c

Solving for variable 'c'.

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

Add '5c' to each side of the equation.
9 + 3c + 5c = -4 + -5c + 5c

Combine like terms: 3c + 5c = 8c
9 + 8c = -4 + -5c + 5c

Combine like terms: -5c + 5c = 0
9 + 8c = -4 + 0
9 + 8c = -4

Add '-9' to each side of the equation.
9 + -9 + 8c = -4 + -9

Combine like terms: 9 + -9 = 0
0 + 8c = -4 + -9
8c = -4 + -9

Combine like terms: -4 + -9 = -13
8c = -13

Divide each side by '8'.
c = -1.625

Simplifying
c = -1.625

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