(x)(.1)+(3)(.5)=(3+x)(.8)

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Solution for (x)(.1)+(3)(.5)=(3+x)(.8) equation:



(x)(.1)+(3)(.5)=(3+x)(.8)
We move all terms to the left:
(x)(.1)+(3)(.5)-((3+x)(.8))=0
We add all the numbers together, and all the variables
x(0.1)-((x+3)(0.8))+3(0.5)=0
We add all the numbers together, and all the variables
x(0.1)-((x+3)(0.8))+1.5=0
We multiply parentheses
0.1x-((x+3)(0.8))+1.5=0
We multiply parentheses ..
0.1x-((+0.8x+2.4))+1.5=0
We calculate terms in parentheses: -((+0.8x+2.4)), so:
(+0.8x+2.4)
We add all the numbers together, and all the variables
(0.8x+2.4)
We get rid of parentheses
0.8x+2.4
Back to the equation:
-(0.8x+2.4)
We get rid of parentheses
0.1x-0.8x-2.4+1.5=0
We add all the numbers together, and all the variables
-0.7x-0.9=0
We move all terms containing x to the left, all other terms to the right
-0.7x=0.9
x=0.9/-0.7
x=-1+0.2/0.7

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