Using order of operations, solve for the following when x=3, y=-3, and z=5:

-3xy2 - -z
3		 xz

  • 65
  • -56
  • 248/45
  • 245/48

When performing order of operations, remember PEMDAS:
  1. Parentheses
  2. Exponents
  3. Multiplication
  4. Division
  5. Addition
  6. Subtraction
Follow that, and you'll get -56, after plugging in the variable numbers, of course.
The question from the test: Mathematical Reasoning GED.

More question:
Solve for n.

n 28 = -84

Solve using the substitution method.

y = 3x - 2
3x 4y = 22

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