-99=-9(u+7)

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Solution for -99=-9(u+7) equation:


Simplifying
-99 = -9(u + 7)

Reorder the terms:
-99 = -9(7 + u)
-99 = (7 * -9 + u * -9)
-99 = (-63 + -9u)

Solving
-99 = -63 + -9u

Solving for variable 'u'.

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

Add '9u' to each side of the equation.
-99 + 9u = -63 + -9u + 9u

Combine like terms: -9u + 9u = 0
-99 + 9u = -63 + 0
-99 + 9u = -63

Add '99' to each side of the equation.
-99 + 99 + 9u = -63 + 99

Combine like terms: -99 + 99 = 0
0 + 9u = -63 + 99
9u = -63 + 99

Combine like terms: -63 + 99 = 36
9u = 36

Divide each side by '9'.
u = 4

Simplifying
u = 4

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