97,016 views
8 votes
8 votes
Consider the equation 6x +7=3x � 5. Which of the following possible first steps would prevent having to deal with fractions when solving the equation?

User Andrei Chis
by
2.5k points

2 Answers

21 votes
21 votes

Final answer:

The first step to prevent dealing with fractions when solving the equation 6x +7=3x - 5 is to eliminate terms wherever possible to simplify the algebra.

Step-by-step explanation:

The first step to prevent dealing with fractions when solving the equation 6x +7=3x - 5 is to eliminate terms wherever possible to simplify the algebra. To do this, we can subtract 3x from both sides of the equation. This will give us 6x - 3x + 7 = -5. Simplifying further, we have 3x + 7 = -5. Now we can proceed with solving the equation without having to deal with fractions.

User Shurvir Mori
by
3.1k points
9 votes
9 votes

Answer:

D. I or II only

Step-by-step explanation:

By a small online search, I've found that the equation is:

6x + 7 = 3x - 5

And the options are:

I. Combining the 6x and 3x terms

II. Combining the 7 and 5

III. Dividing both sides of the equation by 6

A. I only

B. II only

C. III only

D. I or II only

E. I or II or III

So, let's solve the equation in such a way that we can prevent the use of fractions:

6x + 7 = 3x - 5

We can use I and II, combining one in each side, so we get (so we use I and II at the same time)

6x - 3x = -5 - 7

solving these, we get:

(6 - 3)*x = -12

3*x = -12

and -12 is divisible by 3, so if we divide in both sides by 3, we get:

x = -12/3 = -4

x = -4

So we avoided working with fractions, and we used I and II.

Then the first step could be either I or II (the order does not matter)

Then the correct option is:

D. I or II only

User Manuthalasseril
by
3.3k points