Answer:
(2, -3)
Explanation:
x= -3y-7
5x+6y=-8
1. Substitute x= -3y-7 into 5x+6y=-8 which becomes
5(-3y-7)+6y=-8
2. expand the brackets
-15y-35+6y=-8
3. simplify the equation
-9y-35=-8
4. from this we can find the value of y by adding 35 on each side and then dividing by -9 on each side
-9y=27
y=-3
5. so, the value of y is -3 to find the value of x we just substitute the value of y (-3) into the x=-3y-7
x= -3(-3)-7
expand the brackets and simplify the expression
x=9-7
x=2
6. so the value of x=2
7. your final answer will be (2, -3)