Step-by-step explanation:
We have our question.
f + 2.5= 3f + 7.24
Then you combine like terms that taking the coefficients apart.
That is,
NOTE: WHEN TAKING A NUMBER ACROSS AND EQUAL SIGN THE SIGN CHANGES, E.G - TO + .
f - 3f = 7.24 - 2.5
-2f = 4.74
Divide both sides by coefficient of f which is -2
-2f = 4.74
-2 -2
f = 8.49
