-x+y=12
is the equation of a line and since there are infinitely many points on the line and each point is represented by an ordered pair, we have infinitely many solutions.
If we take x as 0, then y must be 12
so (0,12) is one ordered pair that is a solution to the equation.
Zero is often a nice number to pick since it makes the calculation a bit easier.
7
-1
(0, 6.5) is one option.
There are infinitely many ordered pairs tat are solutions. They are all points on the line represented by 5x-6y = 13
It is a simultaneous equation and its solution is x = -1 and y = -5
7
(10, 2)
y=(-1) x=(2)
(0,7)
(2,3)
Do you mean: 4x+7y = 47 and 5x-4y = -5 Then the solutions to the simultaneous equations are: x = 3 and y = 5
x = -3/5 and y = -24/5
The ordered pair is (1, 3).
No solution
These are equations of two straight lines. Provided the equations are not of the same or parallel lines, there can be only one ordered pair. So the ordered pair is - not are : (0.5, -1)
15
Solve this system of equations. 5x+3y+z=-29 x-3y+2z=23 14x-2y+3z=-18 Write the solution as an ordered triple.