8x+21+45+90=180

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Solution for 8x+21+45+90=180 equation: 



8x+21+45+90=180

We move all terms to the left:

8x+21+45+90-(180)=0

We add all the numbers together, and all the variables

8x-24=0

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

8x=24

x=24/8

x=3

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