we have the system
-3x-6y=45 --------> equation A
-5y=x -----> equation B
Solve by substitution method
substitute equation B in equation A
-3(-5y)-6y=45
solve for y
15y-6y=45
9y=45
y=5
Find out the value of x
equation B
x=-5y
substitute the value of y
x=-5(5)
x=-25
therefore
The solution is (-25,5)
