Answer:
Step-by-step explanation:
12x+9y=-4
-3x-10y=-1
===
12x+9y = -4
-12x-40y = -4 [Multiply the second equation by 4 and add to the first]
-31y = -8
y = 8/31
y = 0.258
Use this in the 2nd equation to find x:
-3x -10y = -1
-3x -10*(8/31) = -1
-3x -(80/31) = -1
x = ((80/31) - 1)/-3
x = -0.527
The intersect (solution) is at point (-0.527,0.258)
See attachment.
