Question

Solve the following system of equations.



6x - 5y = - 12

- 3x + 2y = 9


A. (7, 6) B. (6, 7)
C. (- 6, - 7) D. (- 7, - 6)

Answer 1

Fastest way:
6x - 5y = - 12 (1)
-3x + 2y = 9 (2)


Multipli the ecuation (2) by 2, you'll get
-6x + 4y = 18 (3)

Add ecuations 1 and 3 to cancel x
0x -y = 6

Then y=-6

Then substitute y by -6 in any equation and solve for x.

Answer 2

k

Answer 3

x = -7 ?

Answer 4

Right!, good work.

Answer 5

yay thanks