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In the solution of the equation 5 - 3x = 2x + 9, 3x is added to the equation first. Which of the following should be done next? A) add -9. B) add -5. C) add -2x.

Respuesta :

katieag13

Answer:

The choices are:

"add -9"

"add -5"

"add -2x"

the correct answer is "add -9"

I used the answer myself and it is correct!

Step-by-step explanation:


calculista

we have

[tex]5-3x=2x+9[/tex]

Solve for x

Step 1

Add [tex]3x[/tex] both sides

[tex]5-3x+3x=2x+9+3x[/tex]

[tex]5=5x+9[/tex]

Step 2

Add [tex]-9[/tex] both sides

[tex]5-9=5x+9-9[/tex]

[tex]-4=5x[/tex]

Step 3

Divide by [tex]5[/tex] both sides

[tex]-4/5=5x/5[/tex]

[tex]-4/5=x[/tex]

The value of x is equal to [tex]-4/5[/tex]

therefore

the answer is the option A

Add [tex]-9[/tex]

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