Understanding Expressions and Equations
This worksheet helps students practice understanding and solving algebraic expressions and equations at a Grade 9 level.
Includes
Standards
Topics
Understanding Expressions and Equations
Name:
Date:
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Read each question carefully and follow the instructions to answer. Show all your work for full credit.
1. Which of the following is an expression?
2x + 5 = 10
3y - 7
4z = 12
x + y > 5
2. What is the coefficient of x in the expression 5x - 3?
5
-3
x
None of the above
3. An is a mathematical statement that shows two expressions are equal.
4. In the expression 7y + 2, the number 2 is a .
5. To solve an equation, you need to find the value of the .
6. Write an algebraic expression for the phrase: 'three less than twice a number'.
7. Explain the difference between an expression and an equation.
8. The equation x + 5 = 10 is equivalent to x = 5.
True
False
9. In the term '4x', 4 is the variable.
True
False
10. Consider the image of the balance scale below. If the scale represents the equation 2x + 3 = 7, draw what you would do to both sides of the scale to solve for x.
11. Solve the following equation for y: 4y - 8 = 16
12. Solve the following equation for z: (z/3) + 2 = 5
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