Question

Using substitution, what is the first step to solve: x=6y+3 and x+2y=5.​

Answer 1

x= 9/2 y=1,4

Explanation:

Hope this helped you! :)

Answer 2

Explanation:

Remark

You could do it a very convoluted way or you could do it simply. The simple way, I think, is the one intended. The x on the second equation is sitting by it itself. So is it in the first equation. Put the x from the first equation into the second.

Solution

x=6y+3 ===> x+2y=5.​

6y + 3 + 2y = 5 First Step

8y + 3 = 5 Subtract 3 from both sides

8y = 5 - 3 Combine

8y = 2 Divide by 8

y = 2/8

y = 1/4

============================

x = 6y + 3

x = 6*(1/4) + 3

x = 6/4 + 3

x = 1.5 + 3

x = 4.5

Solution (4.5 , 0.25)