9=-c-2(4c+9)

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Solution for 9=-c-2(4c+9) equation:


Simplifying
9 = -1c + -2(4c + 9)

Reorder the terms:
9 = -1c + -2(9 + 4c)
9 = -1c + (9 * -2 + 4c * -2)
9 = -1c + (-18 + -8c)

Reorder the terms:
9 = -18 + -1c + -8c

Combine like terms: -1c + -8c = -9c
9 = -18 + -9c

Solving
9 = -18 + -9c

Solving for variable 'c'.

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

Add '9c' to each side of the equation.
9 + 9c = -18 + -9c + 9c

Combine like terms: -9c + 9c = 0
9 + 9c = -18 + 0
9 + 9c = -18

Add '-9' to each side of the equation.
9 + -9 + 9c = -18 + -9

Combine like terms: 9 + -9 = 0
0 + 9c = -18 + -9
9c = -18 + -9

Combine like terms: -18 + -9 = -27
9c = -27

Divide each side by '9'.
c = -3

Simplifying
c = -3

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