How do you solve this system of equation: 6x - 10y = 2; - 9x - 2y = 16?

2 Answers
Nov 1, 2017

x=-26/17 and y=-19/17

Explanation:

(-5)*(-9x-2y)+6x-10y=2+16*(-5)

51x=-78

x=-26/17

Hence 6*(-26/17)-10y=2 or -10y=-190/17

So, y=-19/17

Nov 1, 2017

y=-19/17 and x=-26/17

Explanation:

6x-10y=2
-9x-2y=16

from first equation x=(10y+2)/6
sub into the second
-9((10y+2)/6)-2y=16
-102y=114
y=-19/17

sub y into equation 1

6x-10(-19/17)=2
x=(2+10(-19/17))/6
Therefore, x=-26/17