3c-15=7-c

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Solution for 3c-15=7-c equation:


Simplifying
3c + -15 = 7 + -1c

Reorder the terms:
-15 + 3c = 7 + -1c

Solving
-15 + 3c = 7 + -1c

Solving for variable 'c'.

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

Add 'c' to each side of the equation.
-15 + 3c + c = 7 + -1c + c

Combine like terms: 3c + c = 4c
-15 + 4c = 7 + -1c + c

Combine like terms: -1c + c = 0
-15 + 4c = 7 + 0
-15 + 4c = 7

Add '15' to each side of the equation.
-15 + 15 + 4c = 7 + 15

Combine like terms: -15 + 15 = 0
0 + 4c = 7 + 15
4c = 7 + 15

Combine like terms: 7 + 15 = 22
4c = 22

Divide each side by '4'.
c = 5.5

Simplifying
c = 5.5

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