(x+h)=x^2-9x

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Solution for (x+h)=x^2-9x equation: 


Simplifying
(x + h) = x2 + -9x

Reorder the terms:
(h + x) = x2 + -9x

Remove parenthesis around (h + x)
h + x = x2 + -9x

Reorder the terms:
h + x = -9x + x2

Solving
h + x = -9x + x2

Solving for variable 'h'.

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

Add '-1x' to each side of the equation.
h + x + -1x = -9x + -1x + x2

Combine like terms: x + -1x = 0
h + 0 = -9x + -1x + x2
h = -9x + -1x + x2

Combine like terms: -9x + -1x = -10x
h = -10x + x2

Simplifying
h = -10x + x2

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