x + y= 9 and x - y= 3
rearrange the second equation:
x - y= 3
x = 3 + y
x -3 = y
substitute y with "x-3" in the first equation and solve
x + y= 9
x + (x-3)= 9
2x -3 = 9
2x = 12
x = 6
you could also start with the first equation and substitute y in the second.
graphically speaking, it's the intersection point of to lines, at least the six-part of the point.
The answer is 666 because I’m good at math
The answer is c because it’s asking for less than so it goes left and the dot isn’t filled so it means less than
106 because, 85 plus 21 = 106
