Answer:
[tex]\frac{20}{7}[/tex]
Step-by-step explanation:
Multiply both sides by 7 to get rid of the denominator on the Right Side (RS). Do the same for the left side (LS) by multiplying both sides by 5 to get:
[tex]7r=4(5)[/tex]
Simplify: [tex]7r=20[/tex]
Divide both sides of the equation by 7 to get: [tex]r=\frac{20}{7}[/tex]
