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-42=-2+5(3x+4)
We move all terms to the left:
-42-(-2+5(3x+4))=0
We calculate terms in parentheses: -(-2+5(3x+4)), so:We get rid of parentheses
-2+5(3x+4)
determiningTheFunctionDomain 5(3x+4)-2
We multiply parentheses
15x+20-2
We add all the numbers together, and all the variables
15x+18
Back to the equation:
-(15x+18)
-15x-18-42=0
We add all the numbers together, and all the variables
-15x-60=0
We move all terms containing x to the left, all other terms to the right
-15x=60
x=60/-15
x=-4
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