Could you help me with three Algebra questions?

Question

1. An equation _____ has one solution.

A) always

B) sometimes

C) never

2. Which of the following would eliminate the variable on the left side of the given equation?

36 - 19w = -6w + 41

A) add -19w

B) add 6w

C) add 19w

D) add -36

3. Which of the following equations has the given solution set?

Solution set: Ø

A) -2m + 5 = 2m + 5

B) -2m + 5 = -2m + 5

C) -2m + 5 = -2m - 5

Answer 1

1. An equation _____ has one solution.

A) always

B) sometimes<--I'm pretty sure. Because quadratic equations can have 2. Others can have more. But I don't know if the question means an equation _____ has AT LEAST one solution.

C) never

2. Which of the following would eliminate the variable on the left side of the given equation?

36 - 19w = -6w + 41

A) add -19w

B) add 6w

C) add 19w<--I'm pretty sure. Then it would be 36 = 13w + 41

D) add -36

3. Which of the following equations has the given solution set?

Solution set: Ø

A) -2m + 5 = 2m + 5

B) -2m + 5 = -2m + 5

C) -2m + 5 = -2m - 5

I'm not sure about the last question. I hope this somewhat helps!