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7.25=5-x0.45
We move all terms to the left:
7.25-(5-x0.45)=0
We add all the numbers together, and all the variables
-(-x0.45+5)+7.25=0
We get rid of parentheses
x0.45-5+7.25=0
We add all the numbers together, and all the variables
x0.45+2.25=0
We move all terms containing x to the left, all other terms to the right
x0.45=-2.25
x=-2.25/1
x=-2.25
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