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x*1.3=1.666045137
We move all terms to the left:
x*1.3-(1.666045137)=0
We add all the numbers together, and all the variables
x*1.3-1.666045137=0
Wy multiply elements
1.3x-1.666045137=0
We move all terms containing x to the left, all other terms to the right
1.3x=1.666045137
x=1.666045137/1.3
x=1+0.366045137/1.3
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