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3 years ago

How do I figure this problem out 2x+23=92

Mathematics

2 answers:

Pepsi [2]3 years ago

4 0

2x+23=92

Move +23 to the other side.

Sign changes from +23 to -23.

2x+23-23=92-23

2x=92-23

2x=69

divide both sides by 2 to get x by itself

2x/2=69/2

Cross out 2 and 2, divide by 2 and then becomes 1*1*x=x

Answer:

x=69/2 and x=34.5 and x=34 1/2

White raven [17]3 years ago

3 0

Answer:

x = 69/2 or x=39.5

Step-by-step explanation:

Subtract 23 from both sides: 2x+23-23=92-23
Simplify: 2x=69
Divide both sides by 2: 2x/2=69/2
x=69/2 or x=39.5

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What is the vertex of the graph of #y=x^2+3x-4#?

borishaifa [10]

To find the x value of the vertex we do:

x = $\frac{-b}{2a}$
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