Question

4х – Зу = 15
x - 2y = 0 solve using substitution please show work

Answer 1

(6,3)

Explanation:

I'm going to start with the second one.

x - 2y = 0

+2y +2y

x = 0 + 2y which is the same as (x = 2y)

Now plug that in for the x-value in the other equation.

4(2y) - 3y = 15

8y - 3y = 15

5y = 15

Divide both sides by 5

y = 3

Here is where you are going to plug it back into the first one we did.

x - 2(3) = 0

x - 6 = 0

+6 +6

x = 6

So the answer is (6,3)

Hope that helps and have a great day!