Question

x + y = 5
x = 4y
please show the steps

Answer 1

Refer to this post by YOU. http://openstudy.com/study#/updates/4fe1edd5e4b06e92b870d45c

Answer 2

If you substitute 4y into the first equation and simplify you can solve for y
Once you solve for y, substitute into second equation for x

(4y) + y =5
5y = 5
y =?

x=4(?)
x=??

Answer 3

Understand?

Answer 4

i am not seeing it

Answer 5

Let's work on the first equation
They give you x =4y

x +y = 5
(4y) + y =5 because we substitute 4y for x
Then add 4y and y
5y = 5
Divide both sides by 5 to get the y alone
5y/5 = 5/5
what is 5/5?

Answer 6

Erm......?

Answer 7

its one

Answer 8

so y =1
Then you can put that in the second equation
x=4(1)
4*1 is ?

Answer 9

is 4

Answer 10

So x =4 and y=1
To check substitute back into any equation

4+1 = 5
Is that right?

Answer 11

right

Answer 12

That's all then.

Answer 13

sweet ok i will use that to get the answer for my actual problem i try to put in things simalar to the actual problem so i can figure it out

Answer 14

good :)