3=-(c+9)

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Solution for 3=-(c+9) equation:


Simplifying
3 = -1(c + 9)

Reorder the terms:
3 = -1(9 + c)
3 = (9 * -1 + c * -1)
3 = (-9 + -1c)

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

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

Add '-3' to each side of the equation.
3 + -3 + c = -9 + -3

Combine like terms: 3 + -3 = 0
0 + c = -9 + -3
c = -9 + -3

Combine like terms: -9 + -3 = -12
c = -12

Simplifying
c = -12

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