multiply the first equation by negative 2
4x+16y=-84 check the sign, ==42?
-4x+6y=-18
add the equations....
24y=-102
y=102/24
Solve using the eliminattion method. Show your work. If the system has no solution or an infinite number of solution, state this.
-2x-8y==42
-4x+6y=-18
1 answer
1 answer