What is the answer to 23=-8u-7+2u ?

The answer to 23=-8u-7+2u is u=-5

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23=-8u-7+2u

23 = - 8 u - 7 + 2 u

u = - 5

Solution steps

23 = - 8 u - 7 + 2 u

Switch sides

- 8 u - 7 + 2 u = 23

Group like terms

- 8 u + 2 u - 7 = 23

Add similar elements:

- 8 u + 2 u = - 6 u

- 6 u - 7 = 23

Move

7

to the right side

- 6 u = 30

Divide both sides by

- 6

u = - 5

f = f^{- 1}

b, 8 v + 8 b = 240

4 x + 3 = - \frac{x}{5} - \frac{3}{2}

- 3 c - 4 = 2

x, 4 = x + y