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Mathematics, 31.01.2020 19:46 mariah10455

If a + b = -2a+b=−2 and x + y = -2x+y=−2,
what is 4x + 5a + 4y + 5b4x+5a+4y+5b?

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If a + b = -2a+b=−2 and x + y = -2x+y=−2,
what is 4x + 5a + 4y + 5b4x+5a+4y+5b?...

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