(u+7)(u-1)=x

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Solution for (u+7)(u-1)=x equation: 


Simplifying
(u + 7)(u + -1) = x

Reorder the terms:
(7 + u)(u + -1) = x

Reorder the terms:
(7 + u)(-1 + u) = x

Multiply (7 + u) * (-1 + u)
(7(-1 + u) + u(-1 + u)) = x
((-1 * 7 + u * 7) + u(-1 + u)) = x
((-7 + 7u) + u(-1 + u)) = x
(-7 + 7u + (-1 * u + u * u)) = x
(-7 + 7u + (-1u + u2)) = x

Combine like terms: 7u + -1u = 6u
(-7 + 6u + u2) = x

Solving
-7 + 6u + u2 = x

Solving for variable 'u'.

Combine like terms: x + -1x = 0
-7 + 6u + u2 + -1x = 0

The solution to this equation could not be determined.

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