combining

  1. D

    combining fractions

    If You know how to Combine Like Fractions or know of a site where I can plug in problems and get tips and how to do them then PLEASE help me! 9) -2(c-d) + (c-d) - 6(c-d) 10) -3(4x + -2y) - 2(x+3y) -2(2x+6y) These are two problems I need hints on just to randomly pick!
  2. Euclid Alexandria

    Simplifying - combining like terms

    Expression to be simplified: -9y + 2 - 4y - 8x + 12 - x My answer: Step 1: Change values -9y + 2 - 4y - 8x + 12 - x = -9y + 2 + (-4y) + (-8x) + 12 + (-1x) Step 2: Apply commutative property = -9y + (-4y) + 2 + 12 + (-8x) + (-1x) Step 3: Combine like terms = (-9 + [-4])y + 2 + 12 + (-8 +...