Asked by pat
solve using the elimination method
-2x+3y=5
2x-y=1
x+y=6
x-y=4
-2x+3y=5
2x-y=1
x+y=6
x-y=4
Answers
Answered by
Reiny
first one:
add them,
2y = 6
y = 3
sub into the 2nd: (could have used the 1st, makes no difference)
2x - 3 = 1
2x = 4
x = 2
so x=2, y=3
do the 2nd one by adding them, follow my example
add them,
2y = 6
y = 3
sub into the 2nd: (could have used the 1st, makes no difference)
2x - 3 = 1
2x = 4
x = 2
so x=2, y=3
do the 2nd one by adding them, follow my example
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