How do you solve the following system?: -2x+3y=5, 3x+2y=12 2x+3y=5,3x+2y=12

1 Answer
Apr 2, 2017

color(red)(y=3,x=2y=3,x=2

Explanation:

:.-2x+3y=5-----(1)

:.3x+2y=12--------(2)

:.(2) xx 3

:.9x+6y=36--------(3)

:.(1) xx 2

:.-4x+6y=10------(4)

:.(3) -(4)

:.13x=26

:.color(red)(x=2

Substitute x=2 in (2)

:.3(2)+2y=12

:.6+2y=12

:.2y=12-6

:.2y=6

:.color(red)(y=3

Substitute y=3,x=2 in (1)

:.-2(2)+3(3)=5

:.-4+9=5

:.color(red)(5=5