9c-15=4c+20

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Solution for 9c-15=4c+20 equation:


Simplifying
9c + -15 = 4c + 20

Reorder the terms:
-15 + 9c = 4c + 20

Reorder the terms:
-15 + 9c = 20 + 4c

Solving
-15 + 9c = 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.
-15 + 9c + -4c = 20 + 4c + -4c

Combine like terms: 9c + -4c = 5c
-15 + 5c = 20 + 4c + -4c

Combine like terms: 4c + -4c = 0
-15 + 5c = 20 + 0
-15 + 5c = 20

Add '15' to each side of the equation.
-15 + 15 + 5c = 20 + 15

Combine like terms: -15 + 15 = 0
0 + 5c = 20 + 15
5c = 20 + 15

Combine like terms: 20 + 15 = 35
5c = 35

Divide each side by '5'.
c = 7

Simplifying
c = 7

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