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Add : 2a + 4b -3, -3a + 2b + 9, -3b - 5a -12 ??? |
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Answer» Step-by-step EXPLANATION: (2a+4b-3) +(3a+2b+9) +(-3b-5a-12) 2a+4b-3+3a+2b+9-3b-5a-12 2a+3a-5a +4b+2b-3b -3+9-12 =0+3b-6 |
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