Question

Evaluate the expression
x = 1 y = 5
4(2y - x)

Answer 1

To evaluate the expression \( 4(2y - x) \) using the values \( x = 1 \) and \( y = 5 \), we can substitute the values of \( x \) and \( y \) into the expression.

1. Substitute \( x \) and \( y \) into the expression:
\[
x = 1,\; y = 5 \implies 4(2y - x) = 4(2(5) - 1)
\]

2. Calculate \( 2y \):
\[
2(5) = 10
\]

3. Now substitute back into the expression:
\[
4(10 - 1) = 4(9)
\]

4. Finally, multiply \( 4 \) by \( 9 \):
\[
4 \times 9 = 36
\]

Thus, the evaluated expression \( 4(2y - x) \) is \( \boxed{36} \).