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X+0.07X=1221.55
We move all terms to the left:
X+0.07X-(1221.55)=0
We add all the numbers together, and all the variables
1.07X-1221.55=0
We move all terms containing X to the left, all other terms to the right
1.07X=1221.55
X=1221.55/1.07
X=1141+0.67999999999984/1.07
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