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x+2.75=-1.5x
We move all terms to the left:
x+2.75-(-1.5x)=0
We get rid of parentheses
x+1.5x+2.75=0
We add all the numbers together, and all the variables
2.5x+2.75=0
We move all terms containing x to the left, all other terms to the right
2.5x=-2.75
x=-2.75/2.5
x=-1+0.25/2.5
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