-9u-8=-7u+8

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


Simplifying
-9u + -8 = -7u + 8

Reorder the terms:
-8 + -9u = -7u + 8

Reorder the terms:
-8 + -9u = 8 + -7u

Solving
-8 + -9u = 8 + -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.
-8 + -9u + 7u = 8 + -7u + 7u

Combine like terms: -9u + 7u = -2u
-8 + -2u = 8 + -7u + 7u

Combine like terms: -7u + 7u = 0
-8 + -2u = 8 + 0
-8 + -2u = 8

Add '8' to each side of the equation.
-8 + 8 + -2u = 8 + 8

Combine like terms: -8 + 8 = 0
0 + -2u = 8 + 8
-2u = 8 + 8

Combine like terms: 8 + 8 = 16
-2u = 16

Divide each side by '-2'.
u = -8

Simplifying
u = -8

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