Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,291 questions

17,801 answers

1,438 comments

34,326 users

Use the elimination method to solve the following systems of equations.

0 votes
3x+ 4y= 17
−x+ 2y= 1
asked Oct 13, 2018 in ALGEBRA 2 by anonymous

1 Answer

0 votes
The system of equations are
3x + 4y  =  17 -------------> (1)
−x + 2y  =  1 --------------> (2)
Multiply Eq (2) with 3 and add it to Eq (1)
Eq (2) X 3 ======>  - 3x + 6y  =  3
Eq (1) =========>     3x + 4y  =  17
                                -------------------------
                                                10y  =  20
                                                    y  =  20/10
                                                    y  =  2
Substitute y = 2 in Eq (1)
3x + 4(2)  =  17
3x + 8  =  17
3x  =  17 - 8
3x  =  9
x  =  9/3
x  =  3
Answer :
The Solutions are ​x  =  3 and y = 2.
answered Oct 14, 2018 by homeworkhelp Mentor

Related questions

...