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

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

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

Combine like terms: -32 + -9 = -41
7 + 10u = -41 + -16u

Solving
7 + 10u = -41 + -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 = -41 + -16u + 16u

Combine like terms: 10u + 16u = 26u
7 + 26u = -41 + -16u + 16u

Combine like terms: -16u + 16u = 0
7 + 26u = -41 + 0
7 + 26u = -41

Add '-7' to each side of the equation.
7 + -7 + 26u = -41 + -7

Combine like terms: 7 + -7 = 0
0 + 26u = -41 + -7
26u = -41 + -7

Combine like terms: -41 + -7 = -48
26u = -48

Divide each side by '26'.
u = -1.846153846

Simplifying
u = -1.846153846

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