90=45+(x-3)

Solution for 90=45+(x-3) equation:

90=45+(x-3)

We move all terms to the left:

90-(45+(x-3))=0


We calculate terms in parentheses: -(45+(x-3)), so:

45+(x-3)

determiningTheFunctionDomain
(x-3)+45

We get rid of parentheses

x-3+45

We add all the numbers together, and all the variables

x+42

Back to the equation:

-(x+42)


We get rid of parentheses

-x-42+90=0

We add all the numbers together, and all the variables

-1x+48=0

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

-x=-48

x=-48/-1

x=+48