3(C-7)=-8

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Solution for 3(C-7)=-8 equation: 


Simplifying
3(C + -7) = -8

Reorder the terms:
3(-7 + C) = -8
(-7 * 3 + C * 3) = -8
(-21 + 3C) = -8

Solving
-21 + 3C = -8

Solving for variable 'C'.

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

Add '21' to each side of the equation.
-21 + 21 + 3C = -8 + 21

Combine like terms: -21 + 21 = 0
0 + 3C = -8 + 21
3C = -8 + 21

Combine like terms: -8 + 21 = 13
3C = 13

Divide each side by '3'.
C = 4.333333333

Simplifying
C = 4.333333333

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