Question

if A= -8, b=-7, c=6 verify that (a+b) + c =a + (b+c).​

Answer 1

Given :

• An equation, (a + b) + c = a + (b + c).
• The value of a = – 8.
• The value of b = – 7.
• The value of c = 6.

⠀⠀⠀⠀

Required :

• To verify the given equation.

⠀⠀⠀⠀

Solution :

We have to verify the given equation.

The given equation,

→ (a + b) + c = a + (b + c)

We have,

• a = –8.
• b = –7.
• c = 6.

Now, subtitute all the values in the equation.

[(– 8) + (– 7)] + 6 = (– 8) + [(– 7) + 6]

Now, open the small brackets.

[– 8 – 7] + 6 = – 8 + [– 7 + 6]

– 15 + 6 = – 8 + (– 1)

– 9 = – 8 – 1

– 9 = – 9

L.H.S. = R.H.S.

• L.H.S. = Left hand side.
• R.H.S. = Right hand side.

Hence Verified !