7(c-21)=-21

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


Simplifying
7(c + -21) = -21

Reorder the terms:
7(-21 + c) = -21
(-21 * 7 + c * 7) = -21
(-147 + 7c) = -21

Solving
-147 + 7c = -21

Solving for variable 'c'.

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

Add '147' to each side of the equation.
-147 + 147 + 7c = -21 + 147

Combine like terms: -147 + 147 = 0
0 + 7c = -21 + 147
7c = -21 + 147

Combine like terms: -21 + 147 = 126
7c = 126

Divide each side by '7'.
c = 18

Simplifying
c = 18

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