Question #18a78

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Answer 1 · 2018-01-18T01:32:23

The answers are #x=6#, #y=-1#.

As #y=-x+5#, we will first substitute #-x+5# into #y# in the #2x+y=11# equation.

#y=-x+5#
#2x+(-x+5)=11#

Then, begin to simplify.

#2x-x+5=11#
#x+5=11#
#x=6#

Next, substitute the #x=6# value into either equation, for this example I used the #y=-x+5# equation.

#y=-(6)+5#

Again, simplify.

#y=-6+5#
#y=-1#

The answer set is:
#x=6#, #y=-1#