Seudónimo
Seudónimo
24-03-2017
Mathematics
contestada
Can someone help me on #7
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rainwatertheo
rainwatertheo
24-03-2017
4(5a-8) = 20a - 32. 20a - 32 + 2a = 22a - 32, which is not equal to 12a - 6. Mary is wrong.
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