Solve for X and Equivalent Equations
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an equivalent expression?
Back
An equivalent expression is one that has the same value as another expression for all values of the variable(s) involved.
2.
FLASHCARD QUESTION
Front
Solve for x: 28 + 3r = 10r
Back
x = 4
3.
FLASHCARD QUESTION
Front
Solve for x: 32 - 7x = -6(x + 3)
Back
x = 50
4.
FLASHCARD QUESTION
Front
Which expression is equivalent to -4(3x - 6) + 15x?
Back
3x + 24
5.
FLASHCARD QUESTION
Front
Solve for x: x + 23 = 58
Back
x = 35
6.
FLASHCARD QUESTION
Front
What is the first step in solving the equation 2x + 5 = 15?
Back
Subtract 5 from both sides to isolate the term with x.
7.
FLASHCARD QUESTION
Front
What does it mean to isolate a variable?
Back
To isolate a variable means to manipulate an equation so that the variable is on one side and all other terms are on the opposite side.
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