solve graphically x+y=5 and 2x+2y=10
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Answer:
first equation
x+y=5
x=5-y
put y=0,1,2 then
x=5,4,3
second equation
2x+2y=10
2x=10-2y
x=(10-2y)/2
put y=0, 1,2 then
x=5,4,3
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