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Evaluating Expressions and Combining Like Terms

Evaluating Expressions and Combining Like Terms. 1. Evaluate 9x+4 when x = 7. 2. When there is no number next to a variable, what number should you write in? Hint: You need to write a complete sentence. 3. Evaluate 3a+7b when a=1 and b= - 4. 4. Simply the below expression. 10x+7y – 3x +2y.

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Evaluating Expressions and Combining Like Terms

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  1. Evaluating Expressions and Combining Like Terms

  2. 1. Evaluate 9x+4 when x = 7

  3. 2. When there is no number next to a variable, what number should you write in? Hint: You need to write a complete sentence.

  4. 3. Evaluate 3a+7b when a=1 and b= -4

  5. 4. Simply the below expression 10x+7y – 3x +2y

  6. 5. Simply the below expression 12a+2b-a+6b

  7. 6. Evaluate 10w2 – 9 when w=2

  8. 7. Simply the below expression 18x+12+2x

  9. 8. Simply the below expression -9h+7h-12+7

  10. 9. Simplify the below fraction. Give your answer as a fraction.

  11. 10. Evaluate 8+9x – 1 when x= 4.

  12. 11. What are the steps to make a decimal into a fraction in the calculator?

  13. 12. What is the perimeter of the below shape? 10x+4 2x

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