x=-1+0.4(3x-20)

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Solution for x=-1+0.4(3x-20) equation: 



x=-1+0.4(3x-20)

We move all terms to the left:

x-(-1+0.4(3x-20))=0



We calculate terms in parentheses: -(-1+0.4(3x-20)), so:

-1+0.4(3x-20)

determiningTheFunctionDomain
0.4(3x-20)-1

We multiply parentheses

1.2x-8-1

We add all the numbers together, and all the variables

1.2x-9

Back to the equation:

-(1.2x-9)



We get rid of parentheses

x-1.2x+9=0

We add all the numbers together, and all the variables

-0.2x+9=0

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

-0.2x=-9

x=-9/-0.2

x=+45

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