5x+9+21=180

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Solution for 5x+9+21=180 equation: 



5x+9+21=180

We move all terms to the left:

5x+9+21-(180)=0

We add all the numbers together, and all the variables

5x-150=0

We move all terms containing x to the left, all other terms to the right

5x=150

x=150/5

x=30

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