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X-0.45X=1.87
We move all terms to the left:
X-0.45X-(1.87)=0
We add all the numbers together, and all the variables
0.55X-1.87=0
We move all terms containing X to the left, all other terms to the right
0.55X=1.87
X=1.87/0.55
X=3+0.22/0.55
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