-3(-7u+5)-4u=2(u-8)-9

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Solution for -3(-7u+5)-4u=2(u-8)-9 equation:


Simplifying
-3(-7u + 5) + -4u = 2(u + -8) + -9

Reorder the terms:
-3(5 + -7u) + -4u = 2(u + -8) + -9
(5 * -3 + -7u * -3) + -4u = 2(u + -8) + -9
(-15 + 21u) + -4u = 2(u + -8) + -9

Combine like terms: 21u + -4u = 17u
-15 + 17u = 2(u + -8) + -9

Reorder the terms:
-15 + 17u = 2(-8 + u) + -9
-15 + 17u = (-8 * 2 + u * 2) + -9
-15 + 17u = (-16 + 2u) + -9

Reorder the terms:
-15 + 17u = -16 + -9 + 2u

Combine like terms: -16 + -9 = -25
-15 + 17u = -25 + 2u

Solving
-15 + 17u = -25 + 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.
-15 + 17u + -2u = -25 + 2u + -2u

Combine like terms: 17u + -2u = 15u
-15 + 15u = -25 + 2u + -2u

Combine like terms: 2u + -2u = 0
-15 + 15u = -25 + 0
-15 + 15u = -25

Add '15' to each side of the equation.
-15 + 15 + 15u = -25 + 15

Combine like terms: -15 + 15 = 0
0 + 15u = -25 + 15
15u = -25 + 15

Combine like terms: -25 + 15 = -10
15u = -10

Divide each side by '15'.
u = -0.6666666667

Simplifying
u = -0.6666666667

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