3s+4s+2s=180

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Solution for 3s+4s+2s=180 equation: 



3s+4s+2s=180

We move all terms to the left:

3s+4s+2s-(180)=0

We add all the numbers together, and all the variables

9s-180=0

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

9s=180

s=180/9

s=20

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