2x - y = 15 2x + 3y = -21 As you observe both equations (having different slopes), you see that the system is consistent, and it has only one solution.
X=7
x2 + 2x - 15 = (x - 3)(x + 5)
2x + 3 = 72x = 4x = 2
Not sure what you mean; that equation certainly has a solution.
2x - y = 15 2x + 3y = -21 As you observe both equations (having different slopes), you see that the system is consistent, and it has only one solution.
X=7
2x plus 3y
X = 6
x=2
x = 0
x=-2
x2 + 2x - 15 = (x - 3)(x + 5)
The answer is (3.5)2 plus (4)2 equals 410.
2x + 8 + x = 2x + 15 simplify 2x to both sides since they have the same sign8 + x = 15 subtract 8 to both sidesx = 7
2x + 3 = 72x = 4x = 2
Not sure what you mean; that equation certainly has a solution.