The value of the expression 5x−3 is 32.
Certainly, let's break down the expression step by step and substitute the given values for x and y.
The expression we are working with is
5x−3. We are asked to substitute 7 for x and 3 for y. So, the expression becomes: 5(7)−3
Now, we can perform the multiplication and subtraction according to the order of operations. Multiplying 5 by 7 gives us 35, and then subtracting 3 from it: 35−3
The final result is: 32
Therefore, when x=7 and y=3, the value of the expression 5x−3 is 32.
In a broader context, substituting values into an expression is a fundamental concept in algebra.
It allows us to evaluate an expression and find its numerical value for specific inputs.
This process is crucial in solving equations, understanding relationships between variables, and making mathematical models applicable to real-world scenarios.
In this specific case, we started with the expression 5x−3, substituted x=7 and y=3, and computed the final result, which is 32.
This numerical value represents the outcome of the expression under the given conditions, providing a concrete solution to the mathematical statement.
Question
What is the value of the expression below when x=7 and y=3 ? 5x-3