Answer:
m – 12 = 20
Step-by-step explanation:
We see "equals 20", so we can automatically write:
= 20
Whenever something says "than", that means the two things they're saying need to be flipped. For example, 5 less than 1 would be 1 - 5.
So "12 less than a number m" would be m – 12.
Putting it all together would be:
m – 12 = 20
