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700x+10.50=500x=12.50
We move all terms to the left:
700x+10.50-(500x)=0
We add all the numbers together, and all the variables
200x+10.5=0
We move all terms containing x to the left, all other terms to the right
200x=-10.5
x=-10.5/200
x=-1/19.047619047619
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