7+(x-1)0.20=5+(x-1)0.30

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Solution for 7+(x-1)0.20=5+(x-1)0.30 equation: 



7+(x-1)0.20=5+(x-1)0.30

We move all terms to the left:

7+(x-1)0.20-(5+(x-1)0.30)=0

We multiply parentheses

0.2x-(5+(x-1)0.30)-0.2+7=0



We calculate terms in parentheses: -(5+(x-1)0.30), so:

5+(x-1)0.30

determiningTheFunctionDomain
(x-1)0.30+5

We multiply parentheses

0.3x-0.3+5

We add all the numbers together, and all the variables

0.3x+4.7

Back to the equation:

-(0.3x+4.7)



We add all the numbers together, and all the variables

0.2x-(0.3x+4.7)+6.8=0

We get rid of parentheses

0.2x-0.3x-4.7+6.8=0

We add all the numbers together, and all the variables

-0.1x+2.1=0

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

-0.1x=-2.1

x=-2.1/-0.1

x=+21

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