130+0.3(x-130)=280+0.1(x-280)

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Solution for 130+0.3(x-130)=280+0.1(x-280) equation: 



130+0.3(x-130)=280+0.1(x-280)

We move all terms to the left:

130+0.3(x-130)-(280+0.1(x-280))=0

We multiply parentheses

0.3x-(280+0.1(x-280))-39+130=0



We calculate terms in parentheses: -(280+0.1(x-280)), so:

280+0.1(x-280)

determiningTheFunctionDomain
0.1(x-280)+280

We multiply parentheses

0.1x-28+280

We add all the numbers together, and all the variables

0.1x+252

Back to the equation:

-(0.1x+252)



We add all the numbers together, and all the variables

0.3x-(0.1x+252)+91=0

We get rid of parentheses

0.3x-0.1x-252+91=0

We add all the numbers together, and all the variables

0.2x-161=0

We move all terms containing x to the left, all other terms to the right

0.2x=161

x=161/0.2

x=805

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