Answer:
(-5,1)
Step-by-step explanation:
Rewrite equations:
x=−2y−3;−x+4y=9
Step: Solve x=−2y−3for x:
x=−2y−3
Step: Substitute−2y−3 for x in x+4y=9:
−x+4y=9
−(−2y−3)+4y=9
6y+3=9(Simplify both sides of the equation)
6y+3+−3=9+−3(Add -3 to both sides)
6y=6 (Divide both sides by 6)
y=1
Step: Substitute 1 for y in x=−2y−3:
x=−2y−3
x=(−2)(1)−3
x=−5(Simplify both sides of the equation)
