Answers

  • Brainly User
2015-12-06T15:48:23+08:00
Cross-multiply:

(x) (3) = (10-x)(2x)
3x = 20x - 2x²

2x² - 20x + 3x = 0
2x² - 17x = 0
x(2x - 17) = 0

x = 0                    2x - 17 = 0
                            2x = 17
                            2x/2 = 17/2
                            x = 17/2  or 8 ¹/₂

ANSWER:  x = {0, 8¹/₂}
1 5 1