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Anna35 [415]
3 years ago
5

What is x when the equation is 5|2x+3|=45?

Mathematics
2 answers:
storchak [24]3 years ago
6 0
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
aliina [53]3 years ago
4 0

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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