First we got to rewrite the equation:
|-2y-5y=9
|3x+11y=4
Then we have to solve for y:
|y=-9/4
|3x+11y=4
Substitute the given value of into the equation
3x+11x(-9/7)=4
Solve for x:
X=127/21
The possible solution of the system is the ordered pair
(x, y)=(127/21, -9/7)
Check if the given ordered pair is the solution of the system of equations:
|-2x(-9/7)-5x(-9/7)=9
|3x127/21+x(-9/7)=4
Simplify the equalities
|9=4
|4=4
Since all of the equalities are true, the ordered pair is the solution of the system
SOLUTION:
(x, y)=(127/21, -9/7)