Solve each compound inequality and grahp the solutions. ( that is the question ) . algebra 1

If f(x)= 3x+6 which of the following is the inverse of f(x)

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.