-34=7(u-7)-2u

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Solution for -34=7(u-7)-2u equation:


Simplifying
-34 = 7(u + -7) + -2u

Reorder the terms:
-34 = 7(-7 + u) + -2u
-34 = (-7 * 7 + u * 7) + -2u
-34 = (-49 + 7u) + -2u

Combine like terms: 7u + -2u = 5u
-34 = -49 + 5u

Solving
-34 = -49 + 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.
-34 + -5u = -49 + 5u + -5u

Combine like terms: 5u + -5u = 0
-34 + -5u = -49 + 0
-34 + -5u = -49

Add '34' to each side of the equation.
-34 + 34 + -5u = -49 + 34

Combine like terms: -34 + 34 = 0
0 + -5u = -49 + 34
-5u = -49 + 34

Combine like terms: -49 + 34 = -15
-5u = -15

Divide each side by '-5'.
u = 3

Simplifying
u = 3

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