40=20+2(x-3)

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Solution for 40=20+2(x-3) equation: 



40=20+2(x-3)

We move all terms to the left:

40-(20+2(x-3))=0



We calculate terms in parentheses: -(20+2(x-3)), so:

20+2(x-3)

determiningTheFunctionDomain
2(x-3)+20

We multiply parentheses

2x-6+20

We add all the numbers together, and all the variables

2x+14

Back to the equation:

-(2x+14)



We get rid of parentheses

-2x-14+40=0

We add all the numbers together, and all the variables

-2x+26=0

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

-2x=-26

x=-26/-2

x=+13

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