Step-by-step explanation:
[tex] \frac{f}{5} - ( - 13) = 12[/tex]
[tex] \frac{f}{5} + 13 = 12[/tex]
[tex] \frac{f}{5} = 12 - 13[/tex]
[tex] \frac{f}{5} = - 1 [/tex]
Now cross multiply
Therefore f = -5
Answer:
f= -5
f/5-(-13)=12
remove the parenthesis and replace the negative with a positive.
f/5+13=12
multiply all by 5
f+65=60
move constant to the right
f=60-65
subtract 60 to 65
-----------------
