Question 232860
Hello, 
5(2f-31)=10f-155
First off, you can distribute 5(2f-31) to look like this: 
10f - 155 = 10f -155 (Then add 155 to both sides)
10f = 10f  (You can see f would equal all numbers, just plug in any number and 
            it satisfies the equation. 
RJ Toftness
www.math-unlock.com