-9u-7=-u-7

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


Simplifying
-9u + -7 = -1u + -7

Reorder the terms:
-7 + -9u = -1u + -7

Reorder the terms:
-7 + -9u = -7 + -1u

Add '7' to each side of the equation.
-7 + 7 + -9u = -7 + 7 + -1u

Combine like terms: -7 + 7 = 0
0 + -9u = -7 + 7 + -1u
-9u = -7 + 7 + -1u

Combine like terms: -7 + 7 = 0
-9u = 0 + -1u
-9u = -1u

Solving
-9u = -1u

Solving for variable 'u'.

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

Add 'u' to each side of the equation.
-9u + u = -1u + u

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

Combine like terms: -1u + u = 0
-8u = 0

Divide each side by '-8'.
u = 0

Simplifying
u = 0

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