Which equation has a solution of (2,0)
The way to find out is to plug in (2) for x and (0) for y
the simplify to see if both equations come out with the
same number on both sides of the equation.
Let's find out if (2,0) is a solution to
A. 3x - y = 6; y + 2 = x
We'll plug in (2) for x and (0) for y:
3(2) - (0) = 6; (0) + 2 = (2)
6 - 0 = 6; 2 = 2
6 = 6;
Yes, (2,0) is a solution because when we plugged in (2) for x and (0)
for y then simplified, we saw that both equations came out with the
same number on both sides of the equation.
Now Let's find out if (2,0) is a solution to
B. 3x + y = 6; y + 2 = x
We'll plug in (2) for x and (0) for y:
3(2) + (0) = 6; (0) + 2 = (2)
6 + 0 = 6; 2 = 2
6 = 6;
Yes, (2,0) is a solution because when we plugged in (2) for x and (0)
for y, then simplified, we saw that both equations came out with the
same number on both sides of the equation.
Edwin