Solve Equations with Variables on both sides

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an equation with variables on both sides?
Back
An equation that contains variables on both the left and right sides, such as 3x + 1 = 2x + 5.
2.
FLASHCARD QUESTION
Front
How do you isolate a variable in an equation?
Back
To isolate a variable, perform inverse operations to both sides of the equation until the variable is alone on one side.
3.
FLASHCARD QUESTION
Front
What does it mean to solve an equation?
Back
To find the value of the variable that makes the equation true.
4.
FLASHCARD QUESTION
Front
Write the equation for the model: 'The sum of a number and 5 is equal to twice that number.'
Back
x + 5 = 2x.
5.
FLASHCARD QUESTION
Front
If 3x + 4 = 10, what is the value of x?
Back
x = 2.
6.
FLASHCARD QUESTION
Front
What is the first step in solving the equation 2x + 3 = x + 7?
Back
Subtract x from both sides to get x + 3 = 7.
7.
FLASHCARD QUESTION
Front
Write the equation for the model: 'A number decreased by 8 equals 12.'
Back
x - 8 = 12.
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