Question

PLEASE HELP!
Which equation would best help solve this problem?

Five added to 4 times a number is equal to 9 less than two times the number.

4x – 5 = 2x + 9
5x + 4 = 9x – 2
4x + 5 = 2x – 9
9x + 2 = 5x + 4

Answer 1

c

Answer 2

How do you know?

Answer 3

4 times a number is 4x and add 5 is 4x+5 and then 2 times a number is 2x and 2x-9 is 9 less than 2x.

Answer 4

Okay, what about this one.
Hold on

Answer 5

Find the unknown number.

Six added to 3 times a number is equal to 4 less than 5 times the number.

5
–5
–10
10

Answer 6

Type it out..Make sure you know how to do it. 3 times a number can be written as 3x. + 6 for six added. You can take it from there.

Answer 7

3 times a number is represented how? (look at the last answer I gave you)
Then add 6 to that.
"Is equal to" means to set all that above = to something
5 times a number is what?
Then use that like the last example to get "5 times a number" - 4 (this would be 4 less, correct)?

Answer 8

Oh wait, hold on, LOL.

Answer 9

ya i think i got it, thanks guys. It was easier than I thought... hahaha.

Answer 10

:)

Answer 11

"Five" . . . that one is pretty easy.

"4 times a number" . . . 4Q

"Five added to 4 times a number" . . . 5 + 4Q

"2 times the number" . . . 2Q

"9 less than 2 times the number" . . . 2Q - 9

The first quantity is equal to the second quantity . . . 5 + 4Q = 2Q - 9

That's choice D.

What if you had to solve it, and find the mysterious unknown number.
Could you handle it from here ?

5 + 4Q = 2Q - 9

Subtract 5 from each side: 4Q = 2Q - 14

Subtract 2Q from each side: 2Q = -14

Divide each side by 2 : Q = -7

-7 is the only number that will make that original long messy statement true.