Solving Systems of Linear Equations
Algebra 2 · Flashcards
ALGEBRA 2 · FLASHCARDS
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QUESTION
What is the solution of the system
x
+
y
=
1
x+y=1
x
+
y
=
1
and
x
−
y
=
9
x-y=9
x
−
y
=
9
?
QUESTION
What is the solution of the system
x
−
2
y
=
0
x-2y=0
x
−
2
y
=
0
and
3
x
+
2
y
=
20
3x+2y=20
3
x
+
2
y
=
20
?
QUESTION
Identify the best method for
3
x
+
2
y
=
7
3x+2y=7
3
x
+
2
y
=
7
and
6
x
−
2
y
=
5
6x-2y=5
6
x
−
2
y
=
5
if you want quick elimination.
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ANSWER
Elimination. Coefficients of
y
y
y
are already opposites.
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