x = 1-4y
2x+y = 7
Substitute 1-4y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation.
What would your solution set be? Please be sure to show your work so that we can discuss the solutions.
x + 4y = 1
2x + y = 7
1 answer