How can I solve this in substitution, can I have a step by step. (x, y)
y=2x+1
2x-y=3

First, you have to see if there is y= or x = to substitute for the equation to find the solution.

y = 2x + 1

Rewrite the equation in slope-intercept form.

2x - y = 3 ->  y = 2x + 3

Add both equations together.                            Substitute.

    2x+1                                                               2(1)+1 = y

+   2x+3                                                                 2 + 1 = y

                                                                                  y = 3

   y=  4x + 4

     4x =4

      x  = 1

Your answer should be (1,3).

for the first question it would be the second answer for the second question it would be the third answer and for the third question it would be the first answer

step-by-step explanation:

answer:

c. the third graph