PLEASE HELP! photo included!

B) (3, -5)

Step-by-step explanation:

To use the substitution method, we need to find what one of the variables is equal too and then put it in the other equation.

I know its weird and confusing, but stay with me!

x+y=-2. What we need to do is isolate one of the variables on the left side. Lets go for y. Subtract x on both sides.

y=-2-x

Now that we know y=-2-x, we can substitute -2-x for y in the second equation, leaving us with only one variable to solve for.

3x+2(-2-x)=-1

All thats left is to solve.

Distributive property.

3x-4-2x=-1

Combine like terms.

x-4=-1

Add 4 on both sides.

x=3

Now we can solve for y by substituting 3 for x in either equation.

(3)+y=-2

Subtract 3 on both sides.

y=-5

x=3 and y=-5.

The correct answer is B) (3, -5)

Hope this helps!

B is your answer

Step-by-step explanation:

3-5=-2

3(3)+2(-5)

9+-10=-1

-1=-1

true

B is your answer

Hope this helps have a great day

-cr8855

if this is really you s much. i only have 3 points left and i have 2 questions to ask

step-by-step explanation:

∆abc has the points a(1, 7), b(-2, 2), and c(4, 2) as its vertices. formed with the point d(1, 2) as its third vertex, then ∆abd is triangle.