Watch the video below to review combining like terms. Then answer the following questions.
For the following questions, choose the answer that has completely simplified each expression by combining like terms. Only one answer is correct.
7b - 3b + 4
10b + 4
8b
4b + 4
-4b + 4
9x + x - 4x + x
7x
5x
6a - 3a - a - 12
3a - a - 12
3a - 12
2a - 12
3a - 13
2x + 5 + x
3x + 5
7x + 5
2x + x + 4
7x + x
4t - t + 3
5t - 3
4t - 4
3t + 3
5t + 3
7x + 2y + 9x + 8
16x + 2y + 8
9xy + 9x + 8
18xy + 8
16x + 10y
6n - n + 3 - 1
7n - 2
7n + 2
5n + 2
5n - 2
7v + 2v + 4v + x
7v + 7x
11v + 2x
13v + x
14v + x
12x - 15y - 18x + 17y + 20x
-14x - 2y
-14 + 2y
14x + 2y
14x - 2y
9x + 7y + 4x - 11y + 10x - 8x
-15x - 3y
-15x - 4y
1x - 4y
-15x - 5y