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Question

Find the number of variables in the expression: 5x+8y+7.

A
4
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B
2
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C
1
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D
3
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Solution

The correct option is B 2
The word ‘variable’ means something that can vary or change. The value of a variable is not fixed. It can take different values.

In the given expression 5x+8y+7, there are two variables x and y.

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