What is the answer to -28=3x-5-7x+9 ?

The answer to -28=3x-5-7x+9 is x=8

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-28=3x-5-7x+9

- 28 = 3 x - 5 - 7 x + 9

x = 8

Solution steps

- 28 = 3 x - 5 - 7 x + 9

Switch sides

3 x - 5 - 7 x + 9 = - 28

Group like terms

3 x - 7 x - 5 + 9 = - 28

Add similar elements:

3 x - 7 x = - 4 x

- 4 x - 5 + 9 = - 28

Add/Subtract the numbers:

- 5 + 9 = 4

- 4 x + 4 = - 28

Move

4

to the right side

- 4 x = - 32

Divide both sides by

- 4

x = 8

\frac{4}{x + 3} + \frac{2}{x - 3} < \frac{5 x - 1}{x ^{2} - 9}

∣ x + 8 ∣ > 9

3144

\frac{d}{- 5} + 6 > - 2

∣ 14 ∣