Register
4x + y = 24 5x - y = 12 Applying systems of linear equations substitution, elimination.
165k views
5 votes
4x + y = 24
5x - y = 12
Applying systems of linear equations substitution, elimination.

4x + y = 24 5x - y = 12 Applying systems of linear equations substitution, elimination-example-1
User ChronoPositron
by
8.9k points

1 Answer

2 votes
Using elimination you can eliminate 'y' to find x first.
4x=24
+ 5x=12
-------------
9x=36
9/9 x=36/9
X=4

Next use substitution to plug 4 back in to 'x'

4(4)+y=24
16+y=24
-16 -16
------------
Y=8
X is 4 and Y is 8
User LTasty
by
9.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!