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Find number abc

If 9bc3a + 4b94c = a4c97a find number abc. Multiple solutions may exist.

Correct answers: 39

The first user who solved this task is Djordje Timotijevic.

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God Gots Jokes

A man climbs to the top of Mt. Sinai and gets close enough to talk to God. Looking up, he asks the Lord, "God, what does a million years mean to you?" The Lord replies, "A minute."

The man then asks, "And what does a million dollars mean to you?" The Lord replies, "A penny."

Then he asks,"Can I have a penny?" The Lord replies, "In a minute."

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First use of chemical symbols in British textbook.

In 1832, Edward Turner wrote a Preface to the 4th edition of his textbook, Elements of Chemistry (published 1833), in which he explained his use of symbols to represent reactants and products in a chemical reaction of Cyanogen, because he found they solved the difficulty of giving a “clear and concise description of. the phenomena in ordinary language.” His was the first use of chemical symbols in a British chemistry textbook. Turner used some algebra-type notation as suggested by William Whewell with parts of Jöns Jacob Berzelius's system, in which iron was represented by Fe (from Ferrum) and oxygen by O. Thus Fe + O represented one oxide of iron, and 2Fe + 3O represented another. Dots over the symbol indicated degree of oxidation, and an underline stood for two equivalents of a substance.«

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