7x+2y=4
y=x+1
solve the system of equations.
(1/3,4/3)
(2/9,11,9)
no solution

SECOND OPTION

Step-by-step explanation:

You can solve the system of equations by the method of substitution:

- You must susbtitute the second equation into the first equation and solve or x:

- Now, you must susbtitute the value of x obtained above into the second equation to calculate the value of y. Then, you have:

Therefore, you obtain:

()

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

faster, im not sure why but i know it is faster