What is the process to solve for an unknown number in an equation?
Solve for the unknown number

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•
Mathematics
•
1st Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
To solve for an unknown number, isolate the variable on one side of the equation by performing inverse operations (addition, subtraction, multiplication, or division) to both sides.
2.
FLASHCARD QUESTION
Front
What is the inverse operation of addition?
Back
The inverse operation of addition is subtraction.
3.
FLASHCARD QUESTION
Front
What is the inverse operation of subtraction?
Back
The inverse operation of subtraction is addition.
4.
FLASHCARD QUESTION
Front
If you have the equation x + 5 = 12, how do you find x?
Back
Subtract 5 from both sides: x = 12 - 5, so x = 7.
5.
FLASHCARD QUESTION
Front
In the equation x - 3 = 9, what is the first step to solve for x?
Back
Add 3 to both sides to isolate x: x = 9 + 3, so x = 12.
6.
FLASHCARD QUESTION
Front
What is the value of x in the equation 18 - x = 10?
Back
To find x, subtract 10 from 18: x = 18 - 10, so x = 8.
7.
FLASHCARD QUESTION
Front
How do you solve the equation x + 6 = 10?
Back
Subtract 6 from both sides: x = 10 - 6, so x = 4.
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