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2.9x-7.9=6.6
We move all terms to the left:
2.9x-7.9-(6.6)=0
We add all the numbers together, and all the variables
2.9x-14.5=0
We move all terms containing x to the left, all other terms to the right
2.9x=14.5
x=14.5/2.9
x=5
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