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2250x+27.50=1400x+20
We move all terms to the left:
2250x+27.50-(1400x+20)=0
We add all the numbers together, and all the variables
2250x-(1400x+20)+27.5=0
We get rid of parentheses
2250x-1400x-20+27.5=0
We add all the numbers together, and all the variables
850x+7.5=0
We move all terms containing x to the left, all other terms to the right
850x=-7.5
x=-7.5/850
x=-5/566.666666667
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