Question

(2,93-19а)-2,93+20а. При а=3 целым 1/3. Упростите и решите

Answer 1

(2,93-19а)-2,93+20а= 2,93-19а-2,93+20а=a

ответ: 3 1/3

Answer 2

To simplify the expression, we can begin by distributing the negative sign before the parentheses:

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(2,93 - 19a) - 2,93 + 20a
= 2,93 - 19a - 2,93 + 20a   (distributing the negative sign)
= 0.07 + a

Now we can substitute a=3 1/3 and simplify:

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0.07 + a
= 0.07 + 3 1/3
= 3 4/15

Therefore, when a=3 1/3, the expression simplifies to 3 4/15.