Iwill give brainliest to whoever is correct

How do you solving the solution of each system using elimination?

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

The first and second steps to solve the equation 3x/5 + 5 = 20.are shown below 3x/5 + 5 - 5 = 20 - 5 3x/5 (5/3) = 15 (5/3)a.addition property of equality b.subtraction property of equalityc.multiplication property of equalityd.division property of equality