SOLUTION: We already did like terms but that was for addition. My teacher didn't explain this at all so I'm only guessing on my work here. Sorry! The problem is: 7m(-3n)+3m(-4n) Could you s

Algebra ->  Real-numbers -> SOLUTION: We already did like terms but that was for addition. My teacher didn't explain this at all so I'm only guessing on my work here. Sorry! The problem is: 7m(-3n)+3m(-4n) Could you s      Log On


   

Question 54688: We already did like terms but that was for addition. My teacher didn't explain this at all so I'm only guessing on my work here. Sorry! The problem is: 7m(-3n)+3m(-4n)
Could you still combine the like terms so it would be 10m(-7n)?
And if that's right would it equal -70mn ?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
7m(-3n)+3m(-4n)
=-21mn-12mn
=-33mn
Cheers,
Stan H.