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put this solution on YOUR website! >>Give two numbers...<<Let them be x and y
>>that have a difference of 7...<<x-y=7
>>...and add to make -1<<x+y=-1
Add the two equations term by term
x-y= 7
x+y=-1
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2x = 6
x = 3
Substitute 3 for x in x-y=7
x-y=7
3-y=7
-y=4
y=-4
They are 3 and -4.
They have a difference of 7 because 3-(-4) = 3+4 = 7
They add to make -1 because 3+(-4) = -1
Edwin
