u-9=7u+7

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Solution for u-9=7u+7 equation:


Simplifying
u + -9 = 7u + 7

Reorder the terms:
-9 + u = 7u + 7

Reorder the terms:
-9 + u = 7 + 7u

Solving
-9 + u = 7 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
-9 + u + -7u = 7 + 7u + -7u

Combine like terms: u + -7u = -6u
-9 + -6u = 7 + 7u + -7u

Combine like terms: 7u + -7u = 0
-9 + -6u = 7 + 0
-9 + -6u = 7

Add '9' to each side of the equation.
-9 + 9 + -6u = 7 + 9

Combine like terms: -9 + 9 = 0
0 + -6u = 7 + 9
-6u = 7 + 9

Combine like terms: 7 + 9 = 16
-6u = 16

Divide each side by '-6'.
u = -2.666666667

Simplifying
u = -2.666666667

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