Question

Find the solution to the equations.

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

Answer 1

x=-2 y= -2

Answer 2

Just add up the equations

Answer 3

we have to add both the equations
3x-y+x+y=-4+0

Answer 4

here,y gets cancelled.then we get,
3x+x=-4
4x=-4
x=-4/4
x=-1

Answer 5

........................

Answer 6

we got the value of x,
now put the value of x in any one of the above equations,say,
x+y=0
here put the value of x and get y.
hence we get both x and y.

Answer 7

those are the answers it gives me to pick from

A.(0, 0)
B.(-1, 1)
C.(1, -1)

Answer 8

its B right?