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4x+2.250=450
We move all terms to the left:
4x+2.250-(450)=0
We add all the numbers together, and all the variables
4x-447.75=0
We move all terms containing x to the left, all other terms to the right
4x=447.75
x=447.75/4
x=111+2.1428571428571/2.2857142857143
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