x(x-5)=x^2+8x+7

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Solution for x(x-5)=x^2+8x+7 equation:


Simplifying
x(x + -5) = x2 + 8x + 7

Reorder the terms:
x(-5 + x) = x2 + 8x + 7
(-5 * x + x * x) = x2 + 8x + 7
(-5x + x2) = x2 + 8x + 7

Reorder the terms:
-5x + x2 = 7 + 8x + x2

Add '-1x2' to each side of the equation.
-5x + x2 + -1x2 = 7 + 8x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-5x + 0 = 7 + 8x + x2 + -1x2
-5x = 7 + 8x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-5x = 7 + 8x + 0
-5x = 7 + 8x

Solving
-5x = 7 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-5x + -8x = 7 + 8x + -8x

Combine like terms: -5x + -8x = -13x
-13x = 7 + 8x + -8x

Combine like terms: 8x + -8x = 0
-13x = 7 + 0
-13x = 7

Divide each side by '-13'.
x = -0.5384615385

Simplifying
x = -0.5384615385

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