i need help solving stuff like what i put in my question. i just dont understand how to like put the like terms together the right way and im learning this in school too but i dont pay attention very well in school

Thank you for the opportunity to help you with your question!

Expand the brackets

3* 45m* 8 -9*46m + 9*7 - 7

1080m - 414m + 63 -7

collecting the like terms

we get,

666m -56

how did you get 1080m ?

what do you mean by expand the brackets?

it implies that you eliminate the brackets by multiplying the interger outside the brackets with those in the brackets

or simply put as, expanding...

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