what should be added to -200 to get ( 10-250) ?

what should be subtracted from -400 to get 75 ?

Dear Student,

a) we are considering 10-250 to be the range in which the result is desiredSo, Let x is required to add to-200 to get (10-250)-200+x=10 (taking lower limit)x=200+10x=210Now,-200+x=250 (taking upper limit)x=250+200x=450so, If we add (210-450) to -200 we get (10-250)b)Let y is required to subtract from -400 to get 75-400-y=75-y=75+400-y=475y=-475So, if we subtract -475 from -400 we get 75.
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