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Algebra Concepts Introduction
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Algebra Concepts Introduction
Part 1: Identify and Choose
1. In the expression 7 + x, which is the variable?
7x+7 + x
2. Which of these is an algebraic expression?
5 + 32y + 1127 × 4
3. Which is a constant?
y3ax
4. Check all that are algebraic expressions:
4x9a - 27 + 5
Part 2: Short Answers & Create
5. In the expression 3x − 4, write the variable and the constant.
Variable:
Constant:
6. Write an algebraic expression for: "the number of apples a plus 5".
7. Explain in one sentence: What does 2n + 7 mean?
8. Create your own expression using up to two variables and one constant. Show your expression and, below it, say which parts are the variables and which is the constant.
Variables:
Constant:
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