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Simplify and plz show work on a piece of paper

Simplify and plz show work on a piece of paper-example-1
User Chenfei
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●) -2 (3a - 4b)-6a + 3b
-2 (9a-7b)
●) 10 - 6a - 4y - (-2a) + 9y
10 - 6a - 13y - (-2a)
●) 9 (2x-6) - 3 (5-4x
12 (6x-11)

All I did was combine the numbers with the same variable
User Panos Theof
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