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

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



X-3=20-3(X+1)

We move all terms to the left:

X-3-(20-3(X+1))=0



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

20-3(X+1)

determiningTheFunctionDomain
-3(X+1)+20

We multiply parentheses

-3X-3+20

We add all the numbers together, and all the variables

-3X+17

Back to the equation:

-(-3X+17)



We get rid of parentheses

X+3X-17-3=0

We add all the numbers together, and all the variables

4X-20=0

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

4X=20

X=20/4

X=5

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