Solve for the Variable Involving Mixed Operations
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We use inverse operations to solve the equation for a variable.
For example, consider the equation 4a – 7 = 33.
To find the value of a, first of all, add 7 to both the sides of the equation.
4a – 7 + 7 = 33 + 7
4a = 40
Now, divide both sides by 4 to find the value of a.
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a = 10
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Help
The correct answer is
Remember :
The smallest number is the one that comes first while counting.
Solution :
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.