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2.25x=-10.8
We move all terms to the left:
2.25x-(-10.8)=0
We add all the numbers together, and all the variables
2.25x+10.8=0
We move all terms containing x to the left, all other terms to the right
2.25x=-10.8
x=-10.8/2.25
x=-4+1/1.25
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