9=7-c

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Solution for 9=7-c equation:


Simplifying
9 = 7 + -1c

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

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

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

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

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

Simplifying
c = -2

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