2. Subtract the second expression from the first expression. a. 15a, -15a b. 4ba, -3ab c. 4d +5, d d. e. 6a+ 17b+ 5c, -10a - 2b + c f. g. -5a + b-4c, -5a - b + 2c i. e-17s - 8u+ 2su, -3e-15s - 9u + 3us h. 2r-3s +13, s - 13 13a -5b+c, 2a + b-2c 7a-4b+ 9c, -2a-5b

ANSWER SHOULD BE
1.30a
2. 7 ab
3. 3d + 5
4. 2r-4s+26
5. 16a + 19b + 4c
6. 11a - 6b + 3c
7. 2b - 6c
8. 9a + b+ 9c
9. 4e - 2s + u- us

PLEASE EXPLAIN ME

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