6x-x+15-9= 6x-x=5x 15-9=6 5x+6=0 5x=-6 x=-1.2
5x = 3x+1000+0 5x-3x = 1000 2x = 1000 x = 500
x2 + 2x - 15 = 0(x + 5) (x - 3) = 0x = -5x = +3
-7
- 5X + 25Y = 0 25Y = 5X Y = (1/5)X ============
(1, 0)
5x - y + 1 = 0
x = -1.2, y = -3
The discriminant is -199.
0 because X= -1
you would first do 10+5x-5=0, then 5x+5=0 and is factored by 5(x+1)=0. or if you want to know what x equals with, x=-1
8(1+5x) +5 = 13+5x => 8+40x + 5 = 13 +5x => 13+40x = 13+5x => 13-13+40x = 13-13+5x => 40x = 5x => 40x - 5x = 0 => 35x = 0 => 35x/35 = 0/35 => x = 0