Answer:
x=5 and y=15
Step-by-step explanation:
x−2y=−25
x−2y+2y=−25+2y(Add 2y to both sides)
x=2y−25
Step: Substitute2y−25forxin3x−y=0:
3x−y=0
3(2y−25)−y=0
5y−75=0(Simplify both sides of the equation)
5y−75+75=0+75(Add 75 to both sides)
5y=75
5y
5
=
75
5
(Divide both sides by 5)
y=15
Step: Substitute 15fory in x=2y−25:
x=2y−25
x=(2)(15)−25
x=5(Simplify both sides of the equation)
