Question

Solve the equation and inequality for x.

ax + 15 = 44: ?

ax − 44 < 15: ?
Answer
The speed limit sign on the expressway says that the speed limit is 55 mph. Write an equality that represents all speeds you can legally drive on the expressway.

x ≤ 55
x ≥ 55
x > 55
x < 55
Answer
If you were to graph the inequality below on a number line:

35 < 7x

Would you use an open or a closed circle?

Would your arrow on the number line point to the left or to the right?
Answer
A student solved the following equation using the following steps:

2 (2x + 2) = 4 (x + 4)
4x + 4 = 4x + 4
4 = 4
Conclusion: Infinitely many solutions

Based on the student's work, the equation was solved ?

The equation solved correctly would show that it has ? solution(s).
Answer
Solve the equation for y:

3x + 5y = 60

y = 60 + 3x/5
y = 57x/5
y = −3/5x + 12
y = 60 − 3x
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