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13/2.25=x
We move all terms to the left:
13/2.25-(x)=0
We add all the numbers together, and all the variables
-1x+13/2.25=0
We multiply all the terms by the denominator
-1x*2.25+13=0
Wy multiply elements
-2.25x+13=0
We move all terms containing x to the left, all other terms to the right
-2.25x=-13
x=-13/-2.25
x=5+1/1.28571428571
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