Respuesta :
The value of the given expression is 15.
The given expression is 5x and x=3.
How to find the value of an expression?
To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number. To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.
Now, substitute x=3 in 5x.
That is, 5(3)=15
Therefore, the value of the given expression is 15.
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