Question

a=-9 b=6 c=-10 verify that (a+b)+c=a+(b+c)
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Answer 1

Answer:

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Answer 2

Given : a= 9, b= 6, c= -10

To prove : (a+b) + c = a+(b+c)........ equation 1

proof:

Now,

putting the given value in equation 1

→ (a+b)+c = a+(b+c)

→ ( 9+6)+ ( -10) = 9+ [ 6 + (-10)]

→ 15 - 10 = 9 + ( 6-10). ........{ +,– = –}

→ 5 = 9+ (-4)

→ 5 = 9-4

→ 5 = 5

# LHS = R.H.S

hence ,prooved.