The given information is,
→ a = -8
→ b = -7
→ c = 6
Let's verify the problem,
→ (a+b) + c = a+ (b+c)
→ (-8 - 7) + 6 = -8 + (-7 + 6)
→ -15 + 6 = -8 - 1
→ -9 = -9
→ [ LHS = RHS ]
Hence, it is equal and verified.
Rise over run
13-5=8 rise
6-2=4 run
The answer is c
They are equal. They're equal because if you simplify 500/600, it becomes 5/6.
I think it is C-two real solution