Michigan State University - Diagnostic Exam

 [next]  [prev]  [bottom]  [up] 

1.4

  •   Solve the equation 3(2 + x) - 5(3 - x) = 4 for x.

    a) -13∕3 b) 13∕8 c) 9∕8 d) -13∕8 e) -1

Solution:
⇒ 6 + 3x - 15 + 5x = 4 ⇒ 8x = 13 ⇒ x = 13∕8

Diagnostic:

If you miss this question please review the distributive property and combining like terms.

Also see 1.3: Literal Equations (Linear) .

 [next]  [prev]  [top]  [up] 

July 15, 2008