X - 8 + (-8x) - 15 if x = - 9

Solve this system of equations: x=2y-8 4x+y=13

The product of two consecutive integers is 72. The equation x (x + 1) = 72 represents the situation, where x represents the smaller integer. Which equation can be factored and solved for the smaller integer?

Warren Weightlifter joined a health club. There was a $40 registration fee and a $27.50 monthly fee. If Warren visits the club 3 times a week for a year, what does each workout cost him?

How do you simplify this math problem 5 (1 + 3x) ?

Erin had 6 pens Justin gave her some more now she has 9 pens how many did Justin give her

Kira wrote a total of 16 pages over 8 hours. How many hours will Kira have to spend writing this week in order to have written a total of 20 pages? Solve using unit rates.

Which expression is the result of factoring the expression below by taking out its greatest common factor? 12x2 + 8=?

The pH of a solution is a measure of the quantity of hydrogen atoms (H) in the solution. It is given by the formula f (x) = - log x.

7. Diane is 25 years older than her son, Craig. The sum of their ages is 105. How old are Diane and Craig?

Emily is adding 51 and 29 which steps can she use to add the numbers