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2.9x-14.7=-3.1
We move all terms to the left:
2.9x-14.7-(-3.1)=0
We add all the numbers together, and all the variables
2.9x-11.6=0
We move all terms containing x to the left, all other terms to the right
2.9x=11.6
x=11.6/2.9
x=4
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