The point of intersection (9.9, 3.7) of the lines gives the solution to the lines
How to plot linear graphs
Given that
Equation 1:
7.0 = -9 - 9y + 5x
Rearrange it to the form y = mx + b
5x - 9y = 16 --------------1
Equation 2:
3y = 21 - x
Similarly,rearrange it to the form y = mx + b.
x + 3y = 21
5x - 9y = 16
| x | y
| ------- | ------
| 0 | -16/9
| 1 | -11/9
| 2 | -6/9
| 3 | -1/9
Now, for the second equation:
x + 3y = 21
| x | y
| ------- | --
| 0 | 7
| 1 | 6
| 2 | 5
| 3 | 4
These tables of values represent points on the respective lines defined by each equation.
Let's plot the corresponding lines on a coordinate plane and find the point of intersection, which is the solution to the system.
The point of intersection (9.9, 3.7) of the lines gives the solution to the lines