Question

HELP PLEASE THIS IS EASY as 2+2=?)))))))) help please

Answer 1

Hello there!

y = 3x - 10
3x + 2y = 16

We wanna solve y = 3x - 10 for y

Let start by Substitute 3x - 10 for y in 3x + 2y = 16
But what does that even mean? It mean that we wanna replace y by 3x - 10.

3x + 2y = 16

3x + 2(3x - 10) = 16     Did you see what I did? I hope so!

3x + 6x - 20 = 16

9x - 20 = 16

Now add 20 on both sides

9x - 20 + 20 = 16 + 20

9x = 36

Then add 9 on both sides

9x/9 = 36/9

x = 4

Now we gonna use the value of x to find the value of y. We gonna do that by Substitute 4 for x in y = 3x - 10

y = 3x - 10

y = 3(4) - 10

y = 12 - 10

y = 2

Thus,

The solution is: x = 4 and y = 2

Type in order pair? Well, it should be like this:

(4,2)


I hope this helps. As always, it is my pleasure to help students like you!