What is the solution to this system of equations? x+y= 7
x = y + 3

A (5,2)
B (4,3)
C (2,5)
D (11/2, 3/2)

A. (5,2)

Step-by-step explanation:

If you go to solve the equation you would first try to get y by itself in the first equation and you would do that by subtracting x on both sides. Then you would have y=7-x and then you would plug the second equation in for the x and get the equation y=7-y-3 because you distribute the negative sign of the x to both the y and 3. Then you combine like terms and get y=4-y and then add the y to both sides and get 2y=4 and then divide both sides by 2 and get y=2. Then you plug in y in the first equation and get x+2=7. Then you subtract 2 from both sides and get x=5.

number one is the correct answer

step-by-step explanation: dogs and cats are mentioned, no other animals

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4