Question

2) Verify that ( a+ b) = ( b +a) for a=3/7, b=-1/5.

Answer 1

3/7 + ( -1/5) = -1/5 + 3/7

3/7 - 1/5 = -1/5 + 3/7

( 15 - 7 )/35 = ( -7 + 15 )/35

8/35 = 8/35

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