Asked by nancy
solve by the elimination method
x + y = -2
4x - 6y = -3
x + y = -2
4x - 6y = -3
Answers
Answered by
Reiny
first one times 6
6x + 6y = -12
4x - 6y = -3
add them
10x = -15
x = -15/10 = -3/2
sub into the 1st
-3/2 + y = -2
y = 3/2 - 2 = -1/2
x = -3/2 , y = -1/2
6x + 6y = -12
4x - 6y = -3
add them
10x = -15
x = -15/10 = -3/2
sub into the 1st
-3/2 + y = -2
y = 3/2 - 2 = -1/2
x = -3/2 , y = -1/2
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