2u+6-3(-7u-1)=5(u-1)

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Solution for 2u+6-3(-7u-1)=5(u-1) equation:


Simplifying
2u + 6 + -3(-7u + -1) = 5(u + -1)

Reorder the terms:
2u + 6 + -3(-1 + -7u) = 5(u + -1)
2u + 6 + (-1 * -3 + -7u * -3) = 5(u + -1)
2u + 6 + (3 + 21u) = 5(u + -1)

Reorder the terms:
6 + 3 + 2u + 21u = 5(u + -1)

Combine like terms: 6 + 3 = 9
9 + 2u + 21u = 5(u + -1)

Combine like terms: 2u + 21u = 23u
9 + 23u = 5(u + -1)

Reorder the terms:
9 + 23u = 5(-1 + u)
9 + 23u = (-1 * 5 + u * 5)
9 + 23u = (-5 + 5u)

Solving
9 + 23u = -5 + 5u

Solving for variable 'u'.

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

Add '-5u' to each side of the equation.
9 + 23u + -5u = -5 + 5u + -5u

Combine like terms: 23u + -5u = 18u
9 + 18u = -5 + 5u + -5u

Combine like terms: 5u + -5u = 0
9 + 18u = -5 + 0
9 + 18u = -5

Add '-9' to each side of the equation.
9 + -9 + 18u = -5 + -9

Combine like terms: 9 + -9 = 0
0 + 18u = -5 + -9
18u = -5 + -9

Combine like terms: -5 + -9 = -14
18u = -14

Divide each side by '18'.
u = -0.7777777778

Simplifying
u = -0.7777777778

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