please answer my question it is very urgent
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please answer my question it is very urgent
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Answer:
a+b = b+a
Step-by-step explanation:
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Answer:
(i) -12/5 + 2/7 = 2/7 + -12/5
-74/35 = -74/35
Hence, verified.
(ii) -5/8 + -9/13 = -9/13 + -5/8
-137/104 = -137/104
Hence, verified.
Step-by-step explanation:
(i) -12/5 + 2/7 = 2/7 + -12/5
-12×7/5×7 + 2×5/7×5 = 2×5/7×5 + -12×7/5×7
-84/35 + 10/35 = 10/35 - 84/35
-74/35 = -74/35
L.H.S = R.H.S
Hence, verified.
The answer is correct.
(ii) -5/8 + -9/13 = -9/13 + -5/8
-5×13/8×13 + -9×8/13×8 = -9×8/13×8 + -5×13/8×13
-65/104 - 72/104 = -72/104 - 65/104
-137/104 = -137/104
L.H.S = R.H.S
Hence, verified.
The answer is correct.
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