Answer:
6
Explanation:
if a=8, b=11, c=-13 then you plug into formula a+b+c=
8+11+(-13)=6
Substituting a = 8, b = 11 and c = -13 into the equation a + b + c = x, we get:
8+11-13 = x
Simplifying the right side of the equation, we get:
x = 6
Therefore, when a = 8, b = 11 and c = -13, a + b + c = 6.
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