It has roots x = 2.618 and x = 0.38197
30 - 12 = 18
x2 + 6x + 9 = 81 x2 + 6x = 72 x2 + 6x - 72 = 0 (x+12)(x-6) = 0 x= -12, 6 (two solutions)
9x + 8 = 6x + 20(- 8 from both sides)9x = 6x + 12(- 6x from both sides)3x = 12(divide both sides by 3)x = 4
6x + 2 = 14 The solution: 6x + 2 = 14 6x +2 - 2 = 14 - 2 6x = 12 6x / 6 = 12 / 6 x = 2
(9,6)
one
6x+4 = x+12+4x-6 6x-x-4x = 12-6-4 x = 2
In 6x + 4 = 12, x = 4/3
It has roots x = 2.618 and x = 0.38197
x^2+6x+2=9 x^2+6x-7=0 (x+7)(x-1)=0 x=-6,1 for your roots
6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
No answer in integers. Quadratic formula gives roots as -1.268 and -4.732
x would be -3
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
If: x+3+6x+9 = 0 then 7x+12 = 0 So: 7x = -12 and x = -12/7