SOLUTION: elimination method: 9x-9y=36 7y-3x=-14
Algebra
->
Expressions-with-variables
-> SOLUTION: elimination method: 9x-9y=36 7y-3x=-14
Log On
Algebra: Expressions involving variables, substitution
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Expressions-with-variables
Question 167544
:
elimination method:
9x-9y=36
7y-3x=-14
Answer by
sowmya(32)
(
Show Source
):
You can
put this solution on YOUR website!
elimination method:
9x-9y=36
7y-3x=-14
eq 1:
x-y = 4
x = y+4
eq 2:
3x = 7y+14
x = (7y+14)/3
1 and 2
=> y+4 = (7y+14)/3
=> 3y+12 = 7y+14
=>4y = -2
=> y = -1/2
x = 7/2