When b = -3 and y = 7, the expression 4y - b evaluates to 31. Substituting these values, we get
.
To evaluate the expression 4y - b with b = -3 and y = 7, substitute these values into the expression.
Thus,
.
Therefore, when b is assigned the value of -3 and y is assigned the value of 7, the result of 4y - b is 31.
This illustrates the process of substituting specific values into variables within an expression to obtain a numerical outcome, in this case, a positive integer.
The expression reflects a linear combination of variables and constants, showcasing the fundamentals of algebraic evaluation.
The complete question is:
Evaluate the expression b = -3 and y = 7.
4y-b