Solve for the Variable Involving Multiplication and Division
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We use inverse operations to solve the equation for a variable.
For example, consider the equation 2a = 4.
Here, 2 is multiplied by a on the left side.
So, to find the value of a, we use inverse operation of multiplication, that is, division.
Dividing both sides by 2, we get:
a = 2
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.