10u=7+8(2u-4)-9

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Solution for 10u=7+8(2u-4)-9 equation:


Simplifying
10u = 7 + 8(2u + -4) + -9

Reorder the terms:
10u = 7 + 8(-4 + 2u) + -9
10u = 7 + (-4 * 8 + 2u * 8) + -9
10u = 7 + (-32 + 16u) + -9

Reorder the terms:
10u = 7 + -32 + -9 + 16u

Combine like terms: 7 + -32 = -25
10u = -25 + -9 + 16u

Combine like terms: -25 + -9 = -34
10u = -34 + 16u

Solving
10u = -34 + 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.
10u + -16u = -34 + 16u + -16u

Combine like terms: 10u + -16u = -6u
-6u = -34 + 16u + -16u

Combine like terms: 16u + -16u = 0
-6u = -34 + 0
-6u = -34

Divide each side by '-6'.
u = 5.666666667

Simplifying
u = 5.666666667

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