(9,6)
x=5, y=6 (6x5) + (4x6) 30 + 24=54
In 6x + 4 = 12, x = 4/3
6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x
4x + 6 = 6x - 12-4x -4x6 = 2x - 12+12 +1218 = 2xx=9
(9,6)
x=5, y=6 (6x5) + (4x6) 30 + 24=54
In 6x + 4 = 12, x = 4/3
6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
x would be -3
3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x
If: x+3+6x+9 = 0 then 7x+12 = 0 So: 7x = -12 and x = -12/7
6x + 47 = 9x + 11 6x + 36 = 9x 36 = 3x 12 = x
In this equation, x=6.
perpendicular
30 - 12 = 18