10u+7=16u-12-9

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Solution for 10u+7=16u-12-9 equation:


Simplifying
10u + 7 = 16u + -12 + -9

Reorder the terms:
7 + 10u = 16u + -12 + -9

Reorder the terms:
7 + 10u = -12 + -9 + 16u

Combine like terms: -12 + -9 = -21
7 + 10u = -21 + 16u

Solving
7 + 10u = -21 + 16u

Solving for variable 'u'.

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

Add '-16u' to each side of the equation.
7 + 10u + -16u = -21 + 16u + -16u

Combine like terms: 10u + -16u = -6u
7 + -6u = -21 + 16u + -16u

Combine like terms: 16u + -16u = 0
7 + -6u = -21 + 0
7 + -6u = -21

Add '-7' to each side of the equation.
7 + -7 + -6u = -21 + -7

Combine like terms: 7 + -7 = 0
0 + -6u = -21 + -7
-6u = -21 + -7

Combine like terms: -21 + -7 = -28
-6u = -28

Divide each side by '-6'.
u = 4.666666667

Simplifying
u = 4.666666667

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