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Consider the equation 9 – x = 5. a. Solve the equation by first adding x to both sides. b. Solve the equation by first subtracting 9 from both sides. c. Which approach, (a) or (b), did you prefer? Explain.

Respuesta :

lublana

Answer:

a.x=4

b.x=4

c.(b)

Step-by-step explanation:

We are given that

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

a. First we adding x on both sides we get

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

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

Now, subtract 5 on both sides we get

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

[tex]x=4[/tex]

b.

We are subtracting 9 from both sides we get

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

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

[tex]x=4[/tex]

We can solve equation both approach a and b

But I prefer (b) because in approach (b)

There are only 3 step in which we can get answer but in approach (a) we can get answer in 4 steps .

Hence, I prefer approach (b)

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