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20=7+5(2x-1)
We move all terms to the left:
20-(7+5(2x-1))=0
We calculate terms in parentheses: -(7+5(2x-1)), so:We get rid of parentheses
7+5(2x-1)
determiningTheFunctionDomain 5(2x-1)+7
We multiply parentheses
10x-5+7
We add all the numbers together, and all the variables
10x+2
Back to the equation:
-(10x+2)
-10x-2+20=0
We add all the numbers together, and all the variables
-10x+18=0
We move all terms containing x to the left, all other terms to the right
-10x=-18
x=-18/-10
x=1+4/5
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