Question

Thuy wrote the system of equations. 24 x 36 y = 72. Negative 16 x 8 y = 80. If the second equation is multiplied by 3, what should the first equation be multiplied by to eliminate the x variable by addition?.

Answer 1

Answer:

Multiply the first equation by 2

Step-by-step explanation

24x + 36y = 72

-16x + 8y = 80

48x + 72y = 144

-48x + 24y = 240

96y = 384

y = 4

24x + 36(4) = 72

24x + 144 = 72

24x = -72

x = -3

(-3, 4)