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.