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5 votes
8 times the difference between a number and 7 is equal to 4 times the number...

A. 12

B. 4

C. 16

D. 48

User Hhs
by
8.5k points

2 Answers

1 vote

Answer:

14

Explanation:

To answer this, we need to set up an equation. Let X represent this number. That would mean our equation would be (x-7)*8=4x. We can use the distributive property to make our equation 8x-56=4x. Subtract 4x on both sides. 4x-56=0. Add 56 to both sides. 4x=56. Divide by 4 on both sides. x=14. This means our mystery number is 14. I know this isn't one of the answer choices but if you check 14 it works.

User Zanzu
by
8.5k points
1 vote

Answer:

The correct answer is 14

Explanation:

It is given that,8 times the difference between a number and 7 is equal to 4 times the number.

To find the number

From the above data we can write,

Let x be the number then,

8 * (x - 7 ) = 4x

8x - 56 = 4x

8x - 4x = 56

4x = 56

x = 56/4 = 14

Therefore the number is 14

User Martin Lang
by
8.6k points