Question

evaluate the expression when b=3 and x=-2. 2b - x

Explanation:

Step1: Substitute the values of \(b\) and \(x\)

We know that \(b = 3\) and \(x=-2\). Substitute these values into the expression \(2b - x\). So we get \(2\times3-(-2)\).

Step2: Simplify the expression

First, calculate \(2\times3 = 6\). Then, simplify \(-(-2)=2\) (because the negative of a negative number is positive). Now, add the results: \(6 + 2=8\).

Answer:

\(8\)