The product of nine and a number is added to 6, the result is 24. what is the number? which of the following equations could be used to solve the problem?

What is the first step of an indirect proof of a number that is divisible by two

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Find the solution of this system of equation -7x+y=-20 9x-3y=36