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2.6x-12.56=5.9
We move all terms to the left:
2.6x-12.56-(5.9)=0
We add all the numbers together, and all the variables
2.6x-18.46=0
We move all terms containing x to the left, all other terms to the right
2.6x=18.46
x=18.46/2.6
x=7+0.26/2.6
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