To determine if the point (-1,-1) is a solution to the system of equations, we need to substitute the values of x and y into both equations and check if they are satisfied.
For the first equation:
2x + y = 5
Substituting x = -1 and y = -1:
2(-1) + (-1) = 5
-2 - 1 = 5
-3 = 5
Since -3 is not equal to 5, the point (-1,-1) is not a solution to the first equation.
For the second equation:
x - y = -2
Substituting x = -1 and y = -1:
(-1) - (-1) = -2
-1 + 1 = -2
0 = -2
Since 0 is not equal to -2, the point (-1,-1) is also not a solution to the second equation.
Therefore, the point (-1,-1) is not a solution to the system of equations.
Determine if the point (-1,-1) is a solution to the system of equations.
2x+y=5
x-y=-2
1 answer
1 answer