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http://prntscr.com/miz1n5

 Feb 10, 2019
 #1
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Look carefully at the statement given:
3 + (5 + 4) = (5 + 4) + 3
Look at Left-hand side:
a = 3 and b =(5 + 4)
Now, look at Right-hand side:
b = (5 + 4)  and  a = 3. Therefore:
a + b = b + a       sub the values of a  and b above into this equation:
3 + (5 + 4) = (5 + 4) + 3
And that is why G is the answer. Got it?.

 Feb 10, 2019

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