No
x = 3 and y = 2
the empty set.
645375
70000000y=35t
No
-5x + x + 9 = -4x + 12 -4x + 9 = -4x + 12 9 = 12 This equation has no solution.
(x, y) = (3, 7) is a solution.
x = 3 and y = 2
the empty set.
645375
70000000y=35t
Both of them are equations!The solution is (x, y) = (2, 1).
It's an equation and its solution is: x = -12
it equals 72. just do 12 X 6
7
it equals 70