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x.7/9=140
We move all terms to the left:
x.7/9-(140)=0
We multiply all the terms by the denominator
x.7-140*9=0
We add all the numbers together, and all the variables
x.7-1260=0
We move all terms containing x to the left, all other terms to the right
x.7=1260
x=1260/1
x=1260
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