7c-30=4c

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Solution for 7c-30=4c equation:


Simplifying
7c + -30 = 4c

Reorder the terms:
-30 + 7c = 4c

Solving
-30 + 7c = 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.
-30 + 7c + -4c = 4c + -4c

Combine like terms: 7c + -4c = 3c
-30 + 3c = 4c + -4c

Combine like terms: 4c + -4c = 0
-30 + 3c = 0

Add '30' to each side of the equation.
-30 + 30 + 3c = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 3c = 0 + 30
3c = 0 + 30

Combine like terms: 0 + 30 = 30
3c = 30

Divide each side by '3'.
c = 10

Simplifying
c = 10

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