10. (1)
What should be
(i) What should be subtracted from 2a + 8b+ 10 to get - 3a + 7b+ 16?
11. Subtract 24ab-101 - 18a from 30ab + 12b + 14a.
12. What should be taken away from 3x? - 4y2 + 5xy + 20 to obtain - r - y2 + 6xy + 20 ?
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Answer:
( i) 5a+b-6
(ii)D6ab + 22b + 32a
(iii)don't know
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