If A=(5/3 -6/7) find 3A?
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Step-by-step explanation:
3A is multiplying the row by three
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A= 5/3 - 6/7
A= 5×7 - 6×3 / 21
A= 35 - 18 / 21
A= 17 / 21
3A = 3 × 17 / 21
3A = 17 / 7
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