-3(-9u+5)-7u=4(u-1)-9

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Solution for -3(-9u+5)-7u=4(u-1)-9 equation:


Simplifying
-3(-9u + 5) + -7u = 4(u + -1) + -9

Reorder the terms:
-3(5 + -9u) + -7u = 4(u + -1) + -9
(5 * -3 + -9u * -3) + -7u = 4(u + -1) + -9
(-15 + 27u) + -7u = 4(u + -1) + -9

Combine like terms: 27u + -7u = 20u
-15 + 20u = 4(u + -1) + -9

Reorder the terms:
-15 + 20u = 4(-1 + u) + -9
-15 + 20u = (-1 * 4 + u * 4) + -9
-15 + 20u = (-4 + 4u) + -9

Reorder the terms:
-15 + 20u = -4 + -9 + 4u

Combine like terms: -4 + -9 = -13
-15 + 20u = -13 + 4u

Solving
-15 + 20u = -13 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
-15 + 20u + -4u = -13 + 4u + -4u

Combine like terms: 20u + -4u = 16u
-15 + 16u = -13 + 4u + -4u

Combine like terms: 4u + -4u = 0
-15 + 16u = -13 + 0
-15 + 16u = -13

Add '15' to each side of the equation.
-15 + 15 + 16u = -13 + 15

Combine like terms: -15 + 15 = 0
0 + 16u = -13 + 15
16u = -13 + 15

Combine like terms: -13 + 15 = 2
16u = 2

Divide each side by '16'.
u = 0.125

Simplifying
u = 0.125

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