20x+7x-9=180

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Solution for 20x+7x-9=180 equation: 



20x+7x-9=180

We move all terms to the left:

20x+7x-9-(180)=0

We add all the numbers together, and all the variables

27x-189=0

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

27x=189

x=189/27

x=7

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