Linear Equations and Linear Systems: Check Your Readiness (U4)

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•
Mathematics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a linear equation?
Back
2.
FLASHCARD QUESTION
Front
What does it mean for a number to be a solution to an equation?
Back
A number is a solution to an equation if, when substituted for the variable, it makes the equation true.
3.
FLASHCARD QUESTION
Front
How do you determine if x = 2 is a solution to the equation -2(x - 4) = 4?
Back
Substitute 2 for x: -2(2 - 4) = -2(-2) = 4, which is true. Therefore, x = 2 is a solution.
4.
FLASHCARD QUESTION
Front
What is the process to solve the equation 2(x - 4) = 10?
Back
Distribute: 2x - 8 = 10. Add 8 to both sides: 2x = 18. Divide by 2: x = 9.
5.
FLASHCARD QUESTION
Front
What does it mean to combine like terms in an expression?
Back
Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.
6.
FLASHCARD QUESTION
Front
What is the equivalent expression for -2(x - 5)?
Back
The equivalent expression is -2x + 10.
7.
FLASHCARD QUESTION
Front
Back
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