5x - 8 = 717

5x = 725

x = 725/5

x = 145

-2, 1.74 and 0.46

20x2 - 27x -8 20 * -8 is -160, and -32 and 5 add to -27 20x2 - 32x + 5x - 8 4x(5x-8) + 1(5x-8) (4x + 1)(5x-8)

3x^2 + 5x - 8 = 0 + 8 + 8 3x^2 + 5x = 0 8x ^2 = 0

if it is 5x + 8 = 23 then the answer is 3. if it is 5x - 8 = 23 then the answer is 31/5.

When x equals 8, the value of 5x would be 5 times 8, which is 40.

5x + 8 = -3x + 16 add 3x to both sides, this gives you... 8x + 8 = 16 minus 8 from both sides, this gives you... 8x = 8 divide by 8 to get what x equals (must divide both sides), this gives you... x = 1

The equation x2 - 5x - 24 = 0 has the two solutions 8 and -3 for x.

7x-5x=8 2x=8 x=4

32-5x=3x+8 32-5x-8=3x+8-8 24-5x=3x 24-5x+5x=3x+5x 24=8x x=24/8=3

If x=6 and y=8, then [ 5x + 8y ] = 5(6) + 8(8) = 30 + 64 = 94

5x+8=6 5x=6-8 5x=-2 x=-0.4 Absolute value of -0.4=0.4

5x-8= -2x+6 (+8 = +8) 5x=-2x+14 (+2x = +2x) 7x=14 x=14

If 3x + 5x = -8, what is x + 1? 3x + 5x = -8 8x = -8 x = -1 x + 1 = -1 + 1 = 0

5x+8 = 10x+35x-10x = 3-8-5x = -5x = 1 and by substituting the value of x into the equations y = 13

• 8-3x+5+5x=7 => -3x+5x=7-8-5 => 2x=-6 => x=-6/2 => x=-3