4c-9=7c-84

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Solution for 4c-9=7c-84 equation:


Simplifying
4c + -9 = 7c + -84

Reorder the terms:
-9 + 4c = 7c + -84

Reorder the terms:
-9 + 4c = -84 + 7c

Solving
-9 + 4c = -84 + 7c

Solving for variable 'c'.

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

Add '-7c' to each side of the equation.
-9 + 4c + -7c = -84 + 7c + -7c

Combine like terms: 4c + -7c = -3c
-9 + -3c = -84 + 7c + -7c

Combine like terms: 7c + -7c = 0
-9 + -3c = -84 + 0
-9 + -3c = -84

Add '9' to each side of the equation.
-9 + 9 + -3c = -84 + 9

Combine like terms: -9 + 9 = 0
0 + -3c = -84 + 9
-3c = -84 + 9

Combine like terms: -84 + 9 = -75
-3c = -75

Divide each side by '-3'.
c = 25

Simplifying
c = 25

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