Question

47:48 The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of system of equations

Answer 1

(9, 3)

Explanation:

(1) 4(0.25x + 0.5 y) = 3.75 ⟶ x + 2y = 15

(2) 4x - 8y = 12 ⟶ x - 2y = 3

2x = 18

x = 9

9 - 2y = 3

-2y = -6

y = 3