write a pair of integers whose: a different is 0. b .sum is -15
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vipandeep:
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LET THAT PAIR BE= x & y.
x-y=0.------(1) x+y= -15.---(2)
add (1)&(2).
x-y= 0
+ x+y= -15
__________
2x= -15
__________
=>2x= -15
=>x= -15/2
=>x= -7.5
=>x-y=0
=> -7.5- y=0
=> y = 7.5
x-y=0.------(1) x+y= -15.---(2)
add (1)&(2).
x-y= 0
+ x+y= -15
__________
2x= -15
__________
=>2x= -15
=>x= -15/2
=>x= -7.5
=>x-y=0
=> -7.5- y=0
=> y = 7.5
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