Answer:
see below
Step-by-step explanation:
If your equations are the ones shown in the second attachment, then their solution is the one shown in the first attachment.
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Apparently, your "interactive graph" needs two points to draw a line through. For these equations, the x- and y-intercepts are found easily enough.
-3x +3y = 9
To find the x-intercept, set y=0 and divide by the coefficient of x: 9/-3 = -3
To find the y-intercept, set x=0 and divide by the coefficient of y: 9/3 = 3.
2x -7y = -14
Same procedure: x-intercept = -14/2 = -7; y-intercept = -14/-7 = 2.
All of these intercepts are shown in the third attachment. Using them, you can use your tool to plot the lines and estimate their point of intersection.
