-5=5(u-3)-7u

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Solution for -5=5(u-3)-7u equation:


Simplifying
-5 = 5(u + -3) + -7u

Reorder the terms:
-5 = 5(-3 + u) + -7u
-5 = (-3 * 5 + u * 5) + -7u
-5 = (-15 + 5u) + -7u

Combine like terms: 5u + -7u = -2u
-5 = -15 + -2u

Solving
-5 = -15 + -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.
-5 + 2u = -15 + -2u + 2u

Combine like terms: -2u + 2u = 0
-5 + 2u = -15 + 0
-5 + 2u = -15

Add '5' to each side of the equation.
-5 + 5 + 2u = -15 + 5

Combine like terms: -5 + 5 = 0
0 + 2u = -15 + 5
2u = -15 + 5

Combine like terms: -15 + 5 = -10
2u = -10

Divide each side by '2'.
u = -5

Simplifying
u = -5

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