What is x when the equation is 5|2x+3|=45?
2 answers:
1.)divide by 5 on each side to obtain
Abs(2x+3)=45
2x+3=45 or 2x+3=-45
2x=42 or 2x=-48
x=21 or x=-24
5|2x+3|=45
|2x+3|=45/5
|2x+3|=9
Now set up two cases.
2x + 3 = -9 and 2x + 3 = 9
Solve each equation for x and then plug your answers back into the original equation given.
The x-value that produces a true statement for the given absolute value equation will be your answer.
Take it from here.
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