15=4-(c+7)

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Solution for 15=4-(c+7) equation:


Simplifying
15 = 4 + -1(c + 7)

Reorder the terms:
15 = 4 + -1(7 + c)
15 = 4 + (7 * -1 + c * -1)
15 = 4 + (-7 + -1c)

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

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

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

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

Combine like terms: 15 + -15 = 0
0 + c = -3 + -15
c = -3 + -15

Combine like terms: -3 + -15 = -18
c = -18

Simplifying
c = -18

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