8x+21x-12+10x+9=180

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Solution for 8x+21x-12+10x+9=180 equation: 



8x+21x-12+10x+9=180

We move all terms to the left:

8x+21x-12+10x+9-(180)=0

We add all the numbers together, and all the variables

39x-183=0

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

39x=183

x=183/39

x=4+9/13

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