Practice Test 2

A recipe uses 6 cups of flour for one batch of muffins. You make 3 batches, so $3f = 18$ cups total. Divide both sides by 3 to find $f$. Solve for $f$ in $3f = 18$.

A bus travels for 3 hours at the same speed. The total distance is 90 miles, so $3x = 90$. Divide both sides by 3 to find $x$. Solve for $x$ in $3x = 90$.