What is the answer to 2x+6+x+9=180 ?

The answer to 2x+6+x+9=180 is x=55

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2x+6+x+9=180

2 x + 6 + x + 9 = 180

x = 55

Solution steps

2 x + 6 + x + 9 = 180

Group like terms

2 x + x + 6 + 9 = 180

Add similar elements:

2 x + x = 3 x

3 x + 6 + 9 = 180

Add the numbers:

6 + 9 = 15

3 x + 15 = 180

Move

15

to the right side

3 x = 165

Divide both sides by

3

x = 55

12 = - 0.1807 x^{2} + 1.7213 x + 9.944

x^{2} - 2 x - 1 = 2

2 x \cdot x^{- \frac{1}{2}}

\frac{10 !}{1 ! 9 !}

3 x^{2} - 3 x - 6