Solve for x: x + 9 = 21
Final review for math

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Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
12
2.
FLASHCARD QUESTION
Front
Simplify: 9(10 – 8x) + 4x
Back
–68x + 90
3.
FLASHCARD QUESTION
Front
Calculate: -3 + 2
Back
-1
4.
FLASHCARD QUESTION
Front
Solve for k: 96 = 6(k + 8)
Back
8
5.
FLASHCARD QUESTION
Front
Simplify: 9x + 12 – 5x – 10
Back
4x + 2
6.
FLASHCARD QUESTION
Front
Definition: Variable
Back
A symbol used to represent an unknown value in mathematics.
7.
FLASHCARD QUESTION
Front
Definition: Equation
Back
A mathematical statement that asserts the equality of two expressions.
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