Lesson 20: Combining Like Terms (Part 1) | Unit 6: Expressions, Equations, and Inequalities

Open Ended

Andre says that $$10x+6$$ and $$5x+11$$ are equivalent because they both equal 16 when $$x$$ is 1. Do you agree with Andre? Explain your reasoning.

Multiple Choice

Select **all** expressions that can be subtracted from $$9x$$ to result in the expression $$3x+5$$ .

• -5+6x

• 5-6x

• 6x+5

• 6x-5

• -6x+5

Multiple Select

Select **all** the statements that are true for any value of $$x$$ .

• $$7x + (2x+7) = 9x+7$$

• $$6x - (2x -4)=4x+4$$

• $$7x + (2x - 1) = 9x + 1$$

• $$\frac12 x+(3 - \frac12 x)=3$$

• $$0.4x - (0.2x+8) =0.2x-8$$

Multiple Choice

Write the expression $$12m-4m$$ with fewer terms.

• 16m
• 4m
• 8m
• 12m

Multiple Choice

Write the expression $$12m-5k+m$$ with fewer terms.

• 13m - 5k
• 12m - 6k
• 11m - 5k + m
• 12m - 5k

Multiple Choice

Write the expression $$9m+ k-(3m-2k)$$ with fewer terms.

• 12m - 2k
• 6m + 3k
• 3m + 5k
• 9m - 3k