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31.5/1.3=x
We move all terms to the left:
31.5/1.3-(x)=0
We add all the numbers together, and all the variables
-1x+31.5/1.3=0
We multiply all the terms by the denominator
-1x*1.3+31.5=0
Wy multiply elements
-1.3x+31.5=0
We move all terms containing x to the left, all other terms to the right
-1.3x=-31.5
x=-31.5/-1.3
x=24+0.3/1.3
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