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1. (8x + 3y) + (5x-2y) =
2.(10ײ-2×) + (12m-7n)=
3.(6m+2n)+(12m - 7n)=
4.(25a+ 2n) + (11a + 15b) =
5.(9ײ+62x - 22) + (-2x² -18x + 13)=​


Sagot :

Answer:

1. 13x+y

2. 2 x

10X-2 + 12m - 7m

3. 18m - 5n

4. 36a+2n+15b

5. 7x2+44x−9