Algebra

1). (1 point) Evaluate for a = 3, b = 9:


Answer: ______

TEAM NO ____ TEAM MEMBERS:

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2). (1 point) Evaluate for a = 7, b = - 14:

a - b = ________________
 3). (2 points) Find x:

4 x + 12 = 40

x = _____

 4). (2 points) Find x:

5 (x - 11) = 25

x = _____


5). (2 points) If you take half my number and decrease the result by 8, you get 12. What is my number?

Equation: ___________________________ Answer:________

6). (2 points) If you take 5 times my number and increase the result by 40, you get 80. What is my number?

Equation: ___________________________ Answer:________

7). (2 points) If you take twice my number and add 5 to it, you get 1. What is my number?

Equation: ___________________________ Answer:________