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0.75x-3.5=2.9
We move all terms to the left:
0.75x-3.5-(2.9)=0
We add all the numbers together, and all the variables
0.75x-6.4=0
We move all terms containing x to the left, all other terms to the right
0.75x=6.4
x=6.4/0.75
x=8+0.4/0.75
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