Systems
GED Math · Flashcards
GED MATH · FLASHCARDS
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QUESTION
What are the steps of the substitution method?
QUESTION
How do you check a proposed solution to a system?
QUESTION
Solve the system
x
+
y
=
10
x + y = 10
x
+
y
=
10
and
x
−
y
=
4
x - y = 4
x
−
y
=
4
.
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ANSWER
x
=
7
x = 7
x
=
7
,
y
=
3
y = 3
y
=
3
. Adding the equations gives
2
x
=
14
2x = 14
2
x
=
14
.
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