its 81
3x + 6x +1 = 10 9x = 10 - 1 9x = 9 x = 1
4x + 55 = 9x + 10 55 = 5x + 10 45 = 5x x = 9
10 + 9x
2x2 + 10 = 9x 2x2 - 9x + 10 = 0 (x - 2)(2x - 5) = 0
7x-4=9x+10-14=2xx=-7
If x equals 10 and y equals 10, then 9x plus 8y equals 170.
Step 1: Divide by 9x: 9x (x2 + 3x - 10) = 9x(x + 5)(x - 2)
9x2 + 9x - 10 =(3x - 2)(3x + 5)
5x+4x-10 = 35 9x = 35+10 9x = 45 x = 5
5*2+9x-2=0 so, going by BODMAS rule 10+9x-2=0 9x=-10+2 9x=-8 x=-8/9 I think!!
2x2 + 9x + 10
7 plus 7x--2x plus 3 is: 7 + 7x + 2x + 3 = 0 9x + 10 = 0 9x = -10 x = -10/9 = -1 1/9