Evaluate x + y + z for x = 2, y=-3, z=-4

-5

Step-by-step explanation:

You have to plug the numbers for each letter

2 + (-3) + (-4)  /  2 - 3 - 4 = -5

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-4

step-by-step explanation:

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents