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Afla nr necunoscute. A) 9315+x= 10987 X+389=9781 B) x-3197=5142 X-8917=14320 C) 9820-x=1974 5002 - x = 2153

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A)9315+x=10987
x=10987-9315
x=1672

x+389=9781
x=9781-389
x=9392

B)x-3197=5142
x=5142+3197
x=8339

x-8917=14320
x=14320+8917
x=23237

C)9820-x=1974
x=9820-1974
x=7846

5002-x=2153
x=5002-2153
x=2849

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