Question

PLEASE HELP! I DONT KNOW THE ANSWER! AHHH I WILLL MARK BRILLIANCE IF ITS RIGHT!

April adds the expressions 9x + 7 and 5x – 3. Evan adds the expressions 14x + 2 and 4x + 3. How much greater is Evan’s sum than April’s sum?

Answer 1

Explanation:

April:

9x + 7 + 5x - 3

First match the numbers with variables

9x + 5x + 7 - 3

Solve!

14x +4

Evan:

14x + 2 + 4x + 3

Do the same thing!

14x + 4x + 3 + 2 --->

18x + 5

Now you have 14x + 4 from April and 18x + 5 from Evan.

replace x with the same number in both equations and solve:

14(2) + 4 = 32

18(2) + 5 = 41

x is not provided so it is impossible to tell how much Evan has more then April.

However Evan will get a higher number no matter what x is.

Answer 2

4x + 1

Explanation:

If April adds her expressions together correctly, she'll get 14x + 4; Evan will get 18x + 5.

Evan's is the greater sum. So, to answer this question we subtract April's sum from Evan's:

18x + 5

-(14x + 4)

--------------

4x + 1

Evan's sum is 4x + 1 greater than April's sum.