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

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


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

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

Reorder the terms:
-7 + 7u = u + 1 + -2(-1 + -5u)
-7 + 7u = u + 1 + (-1 * -2 + -5u * -2)
-7 + 7u = u + 1 + (2 + 10u)

Reorder the terms:
-7 + 7u = 1 + 2 + u + 10u

Combine like terms: 1 + 2 = 3
-7 + 7u = 3 + u + 10u

Combine like terms: u + 10u = 11u
-7 + 7u = 3 + 11u

Solving
-7 + 7u = 3 + 11u

Solving for variable 'u'.

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

Add '-11u' to each side of the equation.
-7 + 7u + -11u = 3 + 11u + -11u

Combine like terms: 7u + -11u = -4u
-7 + -4u = 3 + 11u + -11u

Combine like terms: 11u + -11u = 0
-7 + -4u = 3 + 0
-7 + -4u = 3

Add '7' to each side of the equation.
-7 + 7 + -4u = 3 + 7

Combine like terms: -7 + 7 = 0
0 + -4u = 3 + 7
-4u = 3 + 7

Combine like terms: 3 + 7 = 10
-4u = 10

Divide each side by '-4'.
u = -2.5

Simplifying
u = -2.5

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