1st one times 5, 2nd one times 2
1.5x - y = 20
.8x + y = -110/17
add them
2.3x = 230/17
x = 100/17
plug this back into 1.5x - y = 20
1.5(100/17) - y = 20
-y = 20 - 150/17
y = -190/17
weird equations, weird solutions, but they are right, I checked them
Solve using elimination.......answers must be in ordered pair form
0.3x-0.2y=4
0.4x+0.5y=-55/17
1 answer
1 answer