-26=-12u-9+7u

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Solution for -26=-12u-9+7u equation:


Simplifying
-26 = -12u + -9 + 7u

Reorder the terms:
-26 = -9 + -12u + 7u

Combine like terms: -12u + 7u = -5u
-26 = -9 + -5u

Solving
-26 = -9 + -5u

Solving for variable 'u'.

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

Add '5u' to each side of the equation.
-26 + 5u = -9 + -5u + 5u

Combine like terms: -5u + 5u = 0
-26 + 5u = -9 + 0
-26 + 5u = -9

Add '26' to each side of the equation.
-26 + 26 + 5u = -9 + 26

Combine like terms: -26 + 26 = 0
0 + 5u = -9 + 26
5u = -9 + 26

Combine like terms: -9 + 26 = 17
5u = 17

Divide each side by '5'.
u = 3.4

Simplifying
u = 3.4

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