7u+2-2(-2u-1)=2(u-1)

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


Simplifying
7u + 2 + -2(-2u + -1) = 2(u + -1)

Reorder the terms:
7u + 2 + -2(-1 + -2u) = 2(u + -1)
7u + 2 + (-1 * -2 + -2u * -2) = 2(u + -1)
7u + 2 + (2 + 4u) = 2(u + -1)

Reorder the terms:
2 + 2 + 7u + 4u = 2(u + -1)

Combine like terms: 2 + 2 = 4
4 + 7u + 4u = 2(u + -1)

Combine like terms: 7u + 4u = 11u
4 + 11u = 2(u + -1)

Reorder the terms:
4 + 11u = 2(-1 + u)
4 + 11u = (-1 * 2 + u * 2)
4 + 11u = (-2 + 2u)

Solving
4 + 11u = -2 + 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.
4 + 11u + -2u = -2 + 2u + -2u

Combine like terms: 11u + -2u = 9u
4 + 9u = -2 + 2u + -2u

Combine like terms: 2u + -2u = 0
4 + 9u = -2 + 0
4 + 9u = -2

Add '-4' to each side of the equation.
4 + -4 + 9u = -2 + -4

Combine like terms: 4 + -4 = 0
0 + 9u = -2 + -4
9u = -2 + -4

Combine like terms: -2 + -4 = -6
9u = -6

Divide each side by '9'.
u = -0.6666666667

Simplifying
u = -0.6666666667

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