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bazaltina [42]
3 years ago
13

How do i do this?? Can you please help ? :)

Mathematics
1 answer:
Paul [167]3 years ago
5 0
-3(b-4) = -2b
-3b + 12 = -2b
-3b + 3b + 12 = -2b + 3b
12 = b
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