For the equation, r - 5 = 37, can a value be substituted for x to make that a true number sentence? How many values could be substituted for x and have a true number sentence? Explain your answer

No, a value cannot be substituted for x to make the equation r - 5 = 37 a true number sentence. This is because the equation does not contain the variable x. Therefore, no matter what value is substituted for x, the equation will always be false.

In this specific equation, r is the variable. So, the equation r - 5 = 37 can only be made true by substituting values for r.

In the given equation, r - 5 = 37, we have a variable r instead of x. To determine if there is a value that can be substituted for r to make the equation true, we need to solve for r.

By adding 5 to both sides of the equation:
r - 5 + 5 = 37 + 5
r = 42

Therefore, when we substitute r = 42 into the original equation, we get 42 - 5 = 37, which is a true number sentence.

In this case, only one value, r = 42, can be substituted for r in order to make the equation true.

In the given equation, r - 5 = 37, it seems like there has been an error in the question. The variable in the equation is stated as "r" rather than "x". Therefore, I will assume you're asking if a value can be substituted for "r" to make the equation true.

To determine if a value can be substituted for "r" to make the equation true, we need to solve the equation. Let's do that:

Step 1: Add 5 to both sides of the equation to isolate "r".
r - 5 + 5 = 37 + 5
r = 42

After solving the equation, we find that "r" is equal to 42. So, to make the equation r - 5 = 37 true, the value of "r" should be substituted with 42.

However, if the question was indeed about substituting a value for "x" in the equation r - 5 = 37, it is important to note that the equation does not contain the variable "x". In this case, no value can be substituted for "x" since it does not exist in the equation.