5x - 8 = 717
5x = 725
x = 725/5
x = 145
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3x^2 + 5x - 8 = 0 + 8 + 8 3x^2 + 5x = 0 8x ^2 = 0
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
When x equals 8, the value of 5x would be 5 times 8, which is 40.
32-5x=3x+8 32-5x-8=3x+8-8 24-5x=3x 24-5x+5x=3x+5x 24=8x x=24/8=3
-6 - (-8) = 2