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Algebra Answers

   1. Simplify the following expressions 

  A - a + a + a + a + a = 5a

  B - a + a + b + b = 2a + 2b

  C - b x b + a = b^2 + a

  D - a x a x a = a^3

 

   2. Expand 2(3a + 6)

  6a + 12

 

   3. Solve the following equations

  A - x = 5

  B - x = 3

  C - x = 33

  D - x = 2

 

   4. Make u the subject in the formula p = 4n + 2u

  u = (p-2n)/2

 

   5. Make b the subject of the formula p = 2a + 2b

  b = 1/2p - a

 

   6. If x = 6, find 2x + 24

  36

 

   7. if y = 6 and x = -9, find 3x - 9y + 7

  -74

 

   8. Is 3x + 9 = 22 an expression, equation or formula?

  An equation

 

   9. Simplify the expression: 3s + 6s - s - 8s

  0

 

   10. Solve the equation 5(- 3x - 2) - (x - 3) = -4(4x + 5) + 13

  0 = 0