To perform the subtraction of the two expressions, we need to align like terms. Start by writing down the two expressions:
14mn + 12m + 7n
– (15mn + 22m + 2n)
Now, we will subtract each corresponding term:
- mn terms: 14mn – 15mn = -1mn
- m terms: 12m – 22m = -10m
- n terms: 7n – 2n = 5n
Combining these results, we get:
-1mn – 10m + 5n
Thus, the result of subtracting 15mn 22m 2n from 14mn 12m 7n is -1mn – 10m + 5n.