Question

1. 6.4 - f = 17.2

Explanation:

Step1: Isolate the variable term

To solve for \( f \) in the equation \( 6.4 - f = 17.2 \), we first add \( f \) to both sides of the equation to get \( 6.4 = 17.2 + f \).

Step2: Solve for \( f \)

Then, we subtract \( 17.2 \) from both sides. So, \( f = 6.4 - 17.2 \).
Calculating the right - hand side: \( 6.4-17.2=- 10.8 \).

Answer:

\( f=-10.8 \)