What is the answer to 5x+9+3x+11=180 ?

The answer to 5x+9+3x+11=180 is x=20

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5x+9+3x+11=180

5 x + 9 + 3 x + 11 = 180

x = 20

Solution steps

5 x + 9 + 3 x + 11 = 180

Group like terms

5 x + 3 x + 9 + 11 = 180

Add similar elements:

5 x + 3 x = 8 x

8 x + 9 + 11 = 180

Add the numbers:

9 + 11 = 20

8 x + 20 = 180

Move

20

to the right side

8 x = 160

Divide both sides by

8

x = 20

x, 2 x + 5 y - 3 = 0

\frac{2}{3} x - 3 = 11

2 y - 1 = y + 11

21 - 4 x = 4 x + 21

1.3 x + 5 = - 5.4