-3c-9=-7-c

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Solution for -3c-9=-7-c equation:


Simplifying
-3c + -9 = -7 + -1c

Reorder the terms:
-9 + -3c = -7 + -1c

Solving
-9 + -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.
-9 + -3c + c = -7 + -1c + c

Combine like terms: -3c + c = -2c
-9 + -2c = -7 + -1c + c

Combine like terms: -1c + c = 0
-9 + -2c = -7 + 0
-9 + -2c = -7

Add '9' to each side of the equation.
-9 + 9 + -2c = -7 + 9

Combine like terms: -9 + 9 = 0
0 + -2c = -7 + 9
-2c = -7 + 9

Combine like terms: -7 + 9 = 2
-2c = 2

Divide each side by '-2'.
c = -1

Simplifying
c = -1

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