Pre Algebra Help!!

Question

I know I have to multiply by 42, but......lost now......please show work

-7 =m/-42 

 

Answer 1

Hi Andrea;

-7 =m/-42

To isolate m, you will multiply both sides by -42, which is also (-42/1)...

(-42)(-7)=(m/-42)(-42/1)

(-42)(-7)=(m/-42)

294=m

A negative divided by a negative is positive.