if 2x=-4 then whats the value of 8x

Answer 1

To find the value of \( 8x \) when \( 2x = -4 \), you first need to solve for \( x \).

1. Start with the equation: \[ 2x = -4 \]

2. Divide both sides by 2 to isolate \( x \): \[ x = \frac{-4}{2} = -2 \]

Now that you have the value of \( x \), you can find \( 8x \):

\[ 8x = 8 \cdot (-2) = -16 \]

Thus, the value of \( 8x \) is \(-16\).