-u=-2u-7

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Solution for -u=-2u-7 equation:


Simplifying
-1u = -2u + -7

Reorder the terms:
-1u = -7 + -2u

Solving
-1u = -7 + -2u

Solving for variable 'u'.

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

Add '2u' to each side of the equation.
-1u + 2u = -7 + -2u + 2u

Combine like terms: -1u + 2u = 1u
1u = -7 + -2u + 2u

Combine like terms: -2u + 2u = 0
1u = -7 + 0
1u = -7

Divide each side by '1'.
u = -7

Simplifying
u = -7

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