Question

Evaluate 13-0.75w+8x13−0.75w+8x13, minus, 0, point, 75, w, plus, 8, x when w=12w=12w, equals, 12 and x=\dfrac12x=​2​​1​​x, equals, start fraction, 1, divided by, 2, end fraction.

Answer 1

I read this as: Evaluate 13-0.75w+8x when w=12 and x=½.

This comes to 13-0.75×12+8×½=13-9+4=8.

Answer 2

13-9w+4x

Answer 3

Are you still stuck on this question..? Because I'm pretty sure the answer is 8..