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2.1(.2-1.4)=1.3(.4x-2.5)
We move all terms to the left:
2.1(.2-1.4)-(1.3(.4x-2.5))=0
We add all the numbers together, and all the variables
-(1.3(.4x-2.5))+2.1(-1.2)=0
We add all the numbers together, and all the variables
-(1.3(.4x-2.5))-2.52=0
We calculate terms in parentheses: -(1.3(.4x-2.5)), so:We get rid of parentheses
1.3(.4x-2.5)
We multiply parentheses
1.3x-3.25
Back to the equation:
-(1.3x-3.25)
-1.3x+3.25-2.52=0
We add all the numbers together, and all the variables
-1.3x+0.73=0
We move all terms containing x to the left, all other terms to the right
-1.3x=-0.73
x=-0.73/-1.3
x=0.73/1.3
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