What is the answer to 3x-15+5x-23=90 ?

The answer to 3x-15+5x-23=90 is x=16

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3x-15+5x-23=90

3 x - 15 + 5 x - 23 = 90

x = 16

Solution steps

3 x - 15 + 5 x - 23 = 90

Group like terms

3 x + 5 x - 15 - 23 = 90

Add similar elements:

3 x + 5 x = 8 x

8 x - 15 - 23 = 90

Subtract the numbers:

- 15 - 23 = - 38

8 x - 38 = 90

Move

38

to the right side

8 x = 128

Divide both sides by

8

x = 16

\frac{84}{28} \cdot \frac{2}{3} \cdot 65

∣ 3 x - 1 ∣ + 4 = 0

\frac{2}{2} + 1.75 - \frac{44}{25}

2 x - 3 = 1 + 3 x

x^{2} - 10 x - 39