What is a variable in an equation?
Variables on Both Sides - Word Problems

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•
Mathematics
•
8th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A symbol, often represented by a letter, that stands for an unknown value in an equation.
2.
FLASHCARD QUESTION
Front
What does it mean to solve an equation with variables on both sides?
Back
It means to find the value of the variable that makes both sides of the equation equal.
3.
FLASHCARD QUESTION
Front
How do you isolate a variable in an equation?
Back
By performing inverse operations to both sides of the equation until the variable is alone on one side.
4.
FLASHCARD QUESTION
Front
What is the first step in solving the equation 10x + 9 = 4x - 9?
Back
Subtract 4x from both sides to begin isolating the variable.
5.
FLASHCARD QUESTION
Front
What is the solution to the equation 10x + 9 = 4x - 9?
Back
x = -3.
6.
FLASHCARD QUESTION
Front
How do you set up an inequality for a word problem?
Back
Identify the quantities involved and determine the relationship (greater than, less than) based on the problem's context.
7.
FLASHCARD QUESTION
Front
What inequality represents the cost of buying skis being less than renting skis?
Back
125 + 5x < 35x.
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