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220+0.25x=447.50
We move all terms to the left:
220+0.25x-(447.50)=0
We add all the numbers together, and all the variables
0.25x+220-(447.5)=0
We add all the numbers together, and all the variables
0.25x-227.5=0
We move all terms containing x to the left, all other terms to the right
0.25x=227.5
x=227.5/0.25
x=910
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