2x+3=9x 3=9x-2x 3=7x x=3/7
If 5 x equals 9 plus 2x then x equals?
4x2 - 12x + 9 = 5; whence, 2x - 3 = ±√5, and 2x = 3 ±√5. Therefore, x = ½ (3 ±√5).
2x+1 = 9 2x = 9-1 2x = 8 x = 4
2x + 1 = -5 so 2x = -6 so that x = -3 Then 3x - 4 = 3*(-3) -4 = -9 - 4 = -13
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
(2x + 3)(2x + 3)
3
x=3
2x + 3 = 92x = 9 - 32x = 6x = 6/2x = 3
3x - 3 = 2x + 6 3x = 2x + 9 x = 9
2x-3=4x+9 -2x-12=0 2x=-12 x=-6
2x + 3 = -92x = -12x = -6
If: x+9+5x = 21+2x Then: x = 3
21
2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9
6 + 2x = 5x + 9 , 6 - 9 = 5x - 2x , -3 = 3x , x = -1