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2x+12.36=3
We move all terms to the left:
2x+12.36-(3)=0
We add all the numbers together, and all the variables
2x+9.36=0
We move all terms containing x to the left, all other terms to the right
2x=-9.36
x=-9.36/2
x=-4+1/1.4705882352941
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