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4.21x+5.39=12.07(2.014.72x)
We move all terms to the left:
4.21x+5.39-(12.07(2.014.72x))=0
We add all the numbers together, and all the variables
4.21x-(12.07(+1.45008x))+5.39=0
We calculate terms in parentheses: -(12.07(+1.45008x)), so:We add all the numbers together, and all the variables
12.07(+1.45008x)
We multiply parentheses
12.07x
Back to the equation:
-(12.07x)
4.21x-(+12.07x)+5.39=0
We get rid of parentheses
4.21x-12.07x+5.39=0
We add all the numbers together, and all the variables
-7.86x+5.39=0
We move all terms containing x to the left, all other terms to the right
-7.86x=-5.39
x=-5.39/-7.86
x=3.8776978417266/5.6546762589928
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