Question

the sum of two integer is 6 if one of them is -3 then find other

Answer 1

let integers be x and y where x = -3

ATQ x + y = 6

And x = - 3

So -3 + y = 6

y = 6 + 3

y = 9

Hope it helps

Answer 2

Let the 1st integer be x
-3+x=6
x=6+3
x=9
PROOF
-3+9=6
6=6
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HOPE IT HELPS YOU