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

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


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

Reorder the terms:
x(-8 + x) + 15 = x(x + 7)
(-8 * x + x * x) + 15 = x(x + 7)
(-8x + x2) + 15 = x(x + 7)

Reorder the terms:
15 + -8x + x2 = x(x + 7)

Reorder the terms:
15 + -8x + x2 = x(7 + x)
15 + -8x + x2 = (7 * x + x * x)
15 + -8x + x2 = (7x + x2)

Add '-1x2' to each side of the equation.
15 + -8x + x2 + -1x2 = 7x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
15 + -8x + 0 = 7x + x2 + -1x2
15 + -8x = 7x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
15 + -8x = 7x + 0
15 + -8x = 7x

Solving
15 + -8x = 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
15 + -8x + -7x = 7x + -7x

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

Combine like terms: 7x + -7x = 0
15 + -15x = 0

Add '-15' to each side of the equation.
15 + -15 + -15x = 0 + -15

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

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

Divide each side by '-15'.
x = 1

Simplifying
x = 1

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