Consider the system of equations
5x + y = 31
3x + 4y = -37
Take your expression for y from part (a), and substitute it into the second equation. Solve for x and y.
Enter your answer as the ordered pair(x,y)
5x + y = 31
y = 31 - 5x
3x + 4y = -37
3x + 4(31 - 5x) = -37
Solve for x and then you can get y. :))
=^._.^=
5x + y = 31 so y = 31 - 5x sub this into the second equation for 'y
3x +4( 31-5x) = - 37
- 17x + 124 = - 37
- 17x = -161
x= 9.47 Use this value of 'x' in either of the equations to calculate the value of 'y'