Solve the system of equations and choose the correct ordered pair. 3x + 4y = 385x - 5y = - 30

3x + 4y = - 30 - - - (1)

385x - 5y = - 30 - - - (2)

equation (1) times 5 on each side---

(3x + 4y) * 5=-30*5

15x+20y=-150 - - - (3)

equation (2) times 4 on each side---

(385x - 5y) * 4 = - 30*4

1540x-20y=-120 - - - (4)

If u add equation 3 and 4,

(15x+20y) + (1540x-20y) = (-150) + (-120)

1555x=-270

∴x=-270/1555