x=5 y=4
Step: Substitute
2
3
y+
7
3
forxin−3x+5y=5:
−3x+5y=5
−3(
2
3
y+
7
3
)+5y=5
3y−7=5(Simplify both sides of the equation)
3y−7+7=5+7(Add 7 to both sides)
3y=12
3y
3
=
12
3
(Divide both sides by 3)
y=4
Step: Substitute4foryinx=
2
3
y+
7
3
:
x=
2
3
y+
7
3
x=
2
3
(4)+
7
3
x=5(Simplify both sides of the equation)
Answer:
x=5 and y=4
