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5x+15.5=-15.6
We move all terms to the left:
5x+15.5-(-15.6)=0
We add all the numbers together, and all the variables
5x+31.1=0
We move all terms containing x to the left, all other terms to the right
5x=-31.1
x=-31.1/5
x=-6+1/4.5454545454545
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