Question

Evaluate the expression when w = 8 and x = 4:9w+5x

Answer 1

When we need to evaluate an expression with unknown variables we need to use the values provided to us in place of said variables. In this case in the place of "x" we need to use four and in the place of "w" we need to use 8. With this in mind let's solve the problem:

`\begin{gathered} 9\cdot w+5\cdot x \\ 9\cdot8+5\cdot4 \\ 72+20 \\ 92 \end{gathered}`

The expression is equal to 92 when "x" is equal to 4 and "w" is equal to 8.