add 3a + 4b, 10a -9b
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Answered by
1
Answer:
3a + 10a + 4b - 9b = 13a - 5b.
Answered by
3
3a + 4b , 10a - 9b
= 3a + 4b + 10a - 9b
= 3a + 10a - 9b + 4b
= 13a - 5b
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