How do you solve the following linear system: # 2x-y=-1, x+1/2y=-1/2 #?

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How do you solve the following linear system: # 2x-y=-1, x+1/2y=-1/2 #?

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Answer 1 · 2015-11-17T20:09:14

#Y=0 #
#X=-1/2#

Explanation:

From the 2nd equation:# x=-1/2y -1/2#
We substitute it in the 1st equation:
#2(-1/2y-1/2)-y=-1#
#-y -1 -y =-1#
#-2y=0#
#Y=0# and so
#X=-1/2(0)-1/2 #
#X=-1/2#

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How do you solve the following linear system: # 2x-y=-1, x+1/2y=-1/2 #?

1 Answer

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