What is the answer to 9= 1/2 (5x+6) ?

The answer to 9= 1/2 (5x+6) is x= 12/5

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9= 1/2 (5x+6)

9 = \frac{1}{2} (5 x + 6)

x = \frac{12}{5}

Solution steps

9 = \frac{1}{2} (5 x + 6)

Switch sides

\frac{1}{2} (5 x + 6) = 9

Multiply both sides by

2

5 x + 6 = 18

Move

6

to the right side

5 x = 12

Divide both sides by

5

x = \frac{12}{5}

4 x^{2} + 15 x = 7 x - 3

- \frac{2}{3} - \frac{1}{2} x = \frac{2}{5}

a^{2} - ab - 12 b^{2}

3 x^{2} + 15 - 42 = 0

x^{3} - 8 x^{2} - 16 x + 128