Answer:
B (-4,5)
Step-by-step explanation:
x-3y=-19
2x+y=-3
this is how I'll start it off, I'll multiple the bottom equation by 3 to have the y-value become the reciprocal (opposite) of the top equation.
now it's:
x-3y=-19
6x+3y=-9
now add/subtract
7x=-28
divide 7 from both sides
x=-4
now plug -4 into the equations to get y
-4-3y=-19
add 4 to both sides to get rid of -4
-3y=-15
divide -3 on both sides
y=5
now to double check, do the other equation
2(-4)+y=-3
-8+y=-3
add 8 to both sides to get rid of -8
y=5
now to check the answer, plug in x=-4 and y=5 into the equations
-4-3(5)=-19
-4-15=-19
2(-4)+5=-3
-8+5=-3
