Answer:
I'm not sure but it might be 21.1 (I think)
Answer: I can't read the attached photo well, so I will assume the following:
Equation: w + x -z
Values: w=4, x=-11.7, z = -5.4
If so, the answer is -2.3
Explanation:
4 -11.7 -(-5.4) = -2.3
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