  PRE-ALGEBRA
ALGEBRA 1
GEOMETRY
ALGEBRA 2
TRIGONOMETRY
PRE-CALCULUS
CALCULUS    ALGEBRA 1, 2012 PAGE: 365 SET: Exercises PROBLEM: 1
Please look in your text book for this problem Statement  The system of equations are .

Observe the coefficient of each term are different, so the best method is Elimination using multiplication to solve the system of equations.

Elimination method: ----------(1) ----------(2)

To get two equations that contain opposite terms multiply the first equation by 8. Add the equations to eliminate the x - variable and solve the equation. The resultant equation is .

Divide each side by 7.   The value of substitute in either equation to find x.

First equation: .  Add 15 to each side.  Divide each side by 2.   The solution is . TESTIMONIALS
 "I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!" June Barnett "Your site is amazing! It helped me get through Algebra." Charles "My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful." Dan Pease
 Tweets by @mathskeydotcom

QUESTIONS? LET US HELP.
mathskey.com is not affiliated with any Publisher, Book cover, Title, Author names appear for reference only