8.02 Solving Systems of Equations by Substitution.pdf -...

Name: Aliyah brock
Date: 4/27/2020
School: LFHS
Facilitator: Mr. Hughes
8.02 Solving Systems of Equations by Substitution
Solve each of the following systems of equations using the substitution method. Write your final answer
in the blanks provided.
1.
Solution: (
-3
,
-8
)
Show work here:
2x+3x+1=-14
X=-3
Y=3*(-3)+1
Y=-8
(x,y)=(-3,-8
2.
Solution: (
4
,
9
)
Show work here:
X+x+5=13
X=4
Y=4+5
Y=9
(x,y)=(4,9
3.
Solution: (
-2
,
-4
)
Show work here:
3x+3*2x=-18
X=-2
Y=2*(-2)
Y=-4
(x,y)=(-2,-4)
4.
Solution: (
-2
,
0
)
Show work here:
X+x+2=-2
X=-2
Y=-2+2
Y=0

)
)
7. Matthew and Jake were comparing answers on their homework. The problem asked them to solve
the system of equations below using the substitution method.
Below is the work for each student. Use this work to answer the questions that follow.
:
.