7+9=8u-u

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Solution for 7+9=8u-u equation:


Simplifying
7 + 9 = 8u + -1u

Combine like terms: 7 + 9 = 16
16 = 8u + -1u

Combine like terms: 8u + -1u = 7u
16 = 7u

Solving
16 = 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.
16 + -7u = 7u + -7u

Combine like terms: 7u + -7u = 0
16 + -7u = 0

Add '-16' to each side of the equation.
16 + -16 + -7u = 0 + -16

Combine like terms: 16 + -16 = 0
0 + -7u = 0 + -16
-7u = 0 + -16

Combine like terms: 0 + -16 = -16
-7u = -16

Divide each side by '-7'.
u = 2.285714286

Simplifying
u = 2.285714286

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