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Molly has 4x + $10 and Ron has 20 - 5 x dollars how much money do they have altogether and how much money does Molly have been Ron

Verified Answer :

victoriaandrew

subtract them, just like you added: 
4x + 10 - (-5x +20) 
The minus turns (-5x + 20) into the opposite, or 5x - 20 
4x + 10 + 5x - 20 
9x - 10
I really hope this helps.
  1. Do the opposite of addition (subtraction)

    \(4x - 10 - (-5x + 20)\)

    2. Change this equation (-5x - 20) into a positive (5x + 20)

    \(4x - 10 + 5x - 20\)

    \(9x - 10\)

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