Pre-Algebra: Adding and Subtracting Linear Expressions

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a linear expression?
Back
A linear expression is an algebraic expression in which each term is either a constant or the product of a constant and a single variable raised to the first power.
2.
FLASHCARD QUESTION
Front
How do you add linear expressions?
Back
To add linear expressions, combine like terms by adding the coefficients of the same variable.
3.
FLASHCARD QUESTION
Front
What is the perimeter of a rectangle with length 'x' and width 'y'?
Back
The perimeter P is given by the formula P = 2(x + y).
4.
FLASHCARD QUESTION
Front
Find the sum: 2(x + 3) + 3(3x - 2)
Back
11x.
5.
FLASHCARD QUESTION
Front
What is the difference between two linear expressions?
Back
The difference is found by subtracting the coefficients of like terms in the expressions.
6.
FLASHCARD QUESTION
Front
Find (2x + 3) + (x + 4)
Back
3x + 7.
7.
FLASHCARD QUESTION
Front
What does it mean to combine like terms?
Back
Combining like terms means to add or subtract terms that have the same variable raised to the same power.
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