multiply the first equation by 4 and the second by -3, we get
12x - 20y = 52
-12x - 24y = 27
Add these 2 equations to eliminate x:-
-44y = 79
y = 79 / -44 = -1.795
Substitute for y in the original equation:-
3x - 5(-1.795) = 13
3x = 4.025
x = 1.342
Solution is (-1.80, 1.34) to nearest hundredth
