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0.5+2x=90
We move all terms to the left:
0.5+2x-(90)=0
We add all the numbers together, and all the variables
2x-89.5=0
We move all terms containing x to the left, all other terms to the right
2x=89.5
x=89.5/2
x=44+1/1.3333333333333
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