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elaineandrei93

Question 14

  • 3+6x
  • 3(1+2x)
  • 3(2x+1)

You can check using the distributive and commutative properties that all of these are equivalent to 6x+3.

Question 15

(7+5)p - p = 12p - p = 11p

Question 16

7 + 5(p-p) = 7 + 5(0) = 7

Question 17

No parentheses are needed.

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