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Verified answer
-n= 500 + 250 - 400-n= 750 -400
-n= 350
n= -350
Verified answer
-250 - n + 400 = 500- n + 400 - 250 = 500
- n + 150 = 500
- n = 500 - 150
-n = 350
n = 350 ÷ (-1)
n = -350