u+8=2u-39

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Solution for u+8=2u-39 equation:


Simplifying
u + 8 = 2u + -39

Reorder the terms:
8 + u = 2u + -39

Reorder the terms:
8 + u = -39 + 2u

Solving
8 + u = -39 + 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.
8 + u + -2u = -39 + 2u + -2u

Combine like terms: u + -2u = -1u
8 + -1u = -39 + 2u + -2u

Combine like terms: 2u + -2u = 0
8 + -1u = -39 + 0
8 + -1u = -39

Add '-8' to each side of the equation.
8 + -8 + -1u = -39 + -8

Combine like terms: 8 + -8 = 0
0 + -1u = -39 + -8
-1u = -39 + -8

Combine like terms: -39 + -8 = -47
-1u = -47

Divide each side by '-1'.
u = 47

Simplifying
u = 47

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