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Solve the system algebraically?

#2x+y=-8#
#-x+y=4#

1 Answer

May 18, 2018

#(-4,0)#

Explanation:

Take the second equation away from the first equation:
#2x-(-x)+y-y=-8-4#

#3x=-12#

#x=-4#

Putting #x=-4# into the original equation gives us:

#y=4-4=0#

#(-4,0)#

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