7x+15=-8x-8(6x+6)

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Solution for 7x+15=-8x-8(6x+6) equation:


Simplifying
7x + 15 = -8x + -8(6x + 6)

Reorder the terms:
15 + 7x = -8x + -8(6x + 6)

Reorder the terms:
15 + 7x = -8x + -8(6 + 6x)
15 + 7x = -8x + (6 * -8 + 6x * -8)
15 + 7x = -8x + (-48 + -48x)

Reorder the terms:
15 + 7x = -48 + -8x + -48x

Combine like terms: -8x + -48x = -56x
15 + 7x = -48 + -56x

Solving
15 + 7x = -48 + -56x

Solving for variable 'x'.

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

Add '56x' to each side of the equation.
15 + 7x + 56x = -48 + -56x + 56x

Combine like terms: 7x + 56x = 63x
15 + 63x = -48 + -56x + 56x

Combine like terms: -56x + 56x = 0
15 + 63x = -48 + 0
15 + 63x = -48

Add '-15' to each side of the equation.
15 + -15 + 63x = -48 + -15

Combine like terms: 15 + -15 = 0
0 + 63x = -48 + -15
63x = -48 + -15

Combine like terms: -48 + -15 = -63
63x = -63

Divide each side by '63'.
x = -1

Simplifying
x = -1

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