23=-8-7+2u

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Solution for 23=-8-7+2u equation:


Simplifying
23 = -8 + -7 + 2u

Combine like terms: -8 + -7 = -15
23 = -15 + 2u

Solving
23 = -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.
23 + -2u = -15 + 2u + -2u

Combine like terms: 2u + -2u = 0
23 + -2u = -15 + 0
23 + -2u = -15

Add '-23' to each side of the equation.
23 + -23 + -2u = -15 + -23

Combine like terms: 23 + -23 = 0
0 + -2u = -15 + -23
-2u = -15 + -23

Combine like terms: -15 + -23 = -38
-2u = -38

Divide each side by '-2'.
u = 19

Simplifying
u = 19

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