Question

The sum of two numbers is 86. One of the numbers is five less than three times the other number. What are the two numbers?

Answer 1

x + y = 86

x = 3y - 5

3y - 5 = 86 - y

Answer 2

Solve for y

Answer 3

Would you add 5 to both sides first?

Answer 4

3y-5=86-y
=>4y=91
=>y=91/4

Answer 5

Thanks Rahul.....

Answer 6

huh?

Answer 7

I was asking lilangl to solve for y

Answer 8

sry...then

Answer 9

I dont understand?

Answer 10

y = 22.75

Answer 11

if you solve for y, that's what it comes out to

Answer 12

You were on the right track lilangl

Answer 13

would i have to convert it to a decimal to determine the other number?

Answer 14

sorry, didnt see that you already did that...lol

Answer 15

so then you would take the second equation of x = 3y - 5 and substitute the 22.75 for y and solve for x?

Answer 16

\[3y - 5 = 86 - y \]\[3y - 5 + 5= 86+5 - y\]\[3y = 91 - y\]\[3y + y= 91 - y +y\]\[4y = 91\]\[4y/4 = 91/4\]\[y = 91/4\]\[y = 22.75\]

Answer 17

oh, ok

Answer 18

Yes, but you could also insert it into the first equation.

Answer 19

x + 22.75 = 86

Answer 20

And then solve for x that way

Answer 21

:o)

Answer 22

What is x?

Answer 23

67.25

Answer 24

Hmmm, try again....

Answer 25

You were close