3x + y = -7 -2x + 4y = 0

x =   +  and y =   +

Step-by-step explanation:

Let's solve for x.                                                          

Step 1:  Add 2x to both sides.

3x+y+2x=−2x+4y−7+2x

5x+y=4y−7

Step 2: Add -y to both sides.

5x+y+−y=4y−7+−y

5x=3y−7

Step 3: Divide both sides by 5.

5x/5 = 3y-7/5

x = +  

Let's solve for y.

3x+y=−7−2x+4y

Step 1: Add -4y to both sides.

3x+y+−4y=−2x+4y−7+−4y

3x−3y=−2x−7

Step 2: Add -3x to both sides.

3x−3y+−3x=−2x−7+−3x

−3y=−5x−7

Step 3: Divide both sides by -3.

−3y/3 = -5x-7/3

y = +

have a wonderful day

fourth month

step-by-step explanation:

it is the one with the most keychains.