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69.426-435÷[363÷3-(b×2+6×4)]+12.345÷5=71.890. Aflat pe "b"

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Monicuta9
69426-435÷[363÷3-(b×2+6×4)]+12345÷5=71890
69426-435÷[121-(b×2+24)]+2469=71890
69426-435÷[121-(b×2+24)]=71890-2469
69426-435÷[121-(b×2+24)]=69421
435÷[121-(b×2+24)]=69426-69421
435÷[121-(b×2+24)]=5
121-(b×2+24)=435÷5
121-(b×2+24)=87
b×2+24=121-87
b×2+24=34
b×2=34-24
b×2=10
b=10÷2
b=5

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