Question #b663b

1 Answer
Martha W.
Jun 30, 2017

#x=-0.2#
#y=0.6#

Explanation:

write the equations one over another and add

#x+y=0.4#
#x-y=-0.8#

adding you get: #2x=-0.4#

divide both sides by 2: #x=-0.2#

Substitute into one of the equations to find #y#

#-0.2+y=0.4#

#y=0.6#

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