7c-7=4+17

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Solution for 7c-7=4+17 equation: 


Simplifying
7c + -7 = 4 + 17

Reorder the terms:
-7 + 7c = 4 + 17

Combine like terms: 4 + 17 = 21
-7 + 7c = 21

Solving
-7 + 7c = 21

Solving for variable 'c'.

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

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

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

Combine like terms: 21 + 7 = 28
7c = 28

Divide each side by '7'.
c = 4

Simplifying
c = 4

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