Question

If a = -21, b = 10, c = -5, Verify that a + (b+c) = (a+b) + c​

Answer 1

Answer:

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Step-by-step explanation:

-21+(10+(-5) = ( -21+10) +(- 5)

-21+5 = -11-5

-16= -16

Hence, verified∴

Answer 2

Step-by-step explanation:

a=21

b=10

c=-5

a+(b+c)=(a+b)+c

• 21+[10+(-5)]=(21+10)+5
• 21+10-5=31+5
• 31-5=31+5
• 31-31=5+5
• 0=10

I hope it will help for you......