11x + 8 = 8x + 20 3x + 8 = 20 3x = 12 x = 4
13x + 15 = 11x - 5 2x = -20 x = -10
That's an equation where x = 5
11x = 20x +1811x-20x=18x(11-20)=18-9x=18x=-2
It is B, 0.
11x + 8 = 8x + 20 3x + 8 = 20 3x = 12 x = 4
13x + 15 = 11x - 5 2x = -20 x = -10
That's an equation where x = 5
If you mean: 3x squared -11x -20 = 0 Then: x = -5 or x = 4/3
x + 20 + 10x = 20 + 9x 11x + 20 = 20 + 9x Subtract 20 from both sides: 11x = 9x Subtract 9x from both sides: 2x = 0 Divide both sides by 2: x = 0
11x = 20x +1811x-20x=18x(11-20)=18-9x=18x=-2
-11x=22011x=-220x=-220/11=-20
3x^2=-20 so x^2=-20/3 this has no real roots but the plus of minus i(square root of 20/3) is a solution if we allow complex numbers.
It is B, 0.
20 = 400
4x + 8 + 7x + 12 = 11x + 20
(x + 4)(3x - 5)