Not necessarily.
x=-3
negative one and a half
4x + 7 = 6x -7 14=2x so x = 7 (plus a negative # is simply - that number)
y = -6x + 3 Multiply the slope by the negative reciprocal y = 1/6x + 3
(9,6)
6x+x = 7x
6x plus 3 equals 8x plus 14 when solved mathematically is equal to x = -5.5.
-6x
x=10
6x
The quadratic expression x2+6x+8 when factorised equals (x+2)(x+4)