7(c-12)=(21)

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Solution for 7(c-12)=(21) equation:


Simplifying
7(c + -12) = (21)

Reorder the terms:
7(-12 + c) = (21)
(-12 * 7 + c * 7) = (21)
(-84 + 7c) = (21)
-84 + 7c = 21

Solving
-84 + 7c = 21

Solving for variable 'c'.

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

Add '84' to each side of the equation.
-84 + 84 + 7c = 21 + 84

Combine like terms: -84 + 84 = 0
0 + 7c = 21 + 84
7c = 21 + 84

Combine like terms: 21 + 84 = 105
7c = 105

Divide each side by '7'.
c = 15

Simplifying
c = 15

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