Question

(x-14)/5-(6x-45)/7 Хелп

Answer 1

Ответ:первую дробь домнажаем на 7,другую на 5(приводим к общему знамкнателю). Затем раскрывает скобки и приводим подобные слонаемые

Объяснение:

Answer 2

(x-14)/5-(6x-45)/7=приводим к общему знаменателю=(7(х-14)-5(6х-45))/35=(7х-98-30х+225)/35=(-23х+127)/35

Answer 3

To simplify the expression (x-14)/5 - (6x-45)/7, we can find a common denominator and combine the terms.

The common denominator for 5 and 7 is 35. We need to multiply the numerator and denominator of each fraction by the factor needed to make the denominator 35.

For the first fraction, (x-14)/5, we need to multiply by 7 to get a denominator of 35:

(7(x-14))/(7*5) = (7x - 98)/35

For the second fraction, (6x-45)/7, we need to multiply by 5 to get a denominator of 35:

(5(6x-45))/(5*7) = (30x - 225)/35

Now we can rewrite the expression with the common denominator:

(7x - 98)/35 - (30x - 225)/35

To subtract the fractions, we can simply subtract the numerators and keep the common denominator:

(7x - 98 - 30x + 225)/35

Combining like terms in the numerator:

(7x - 30x - 98 + 225)/35

Simplifying further:

(-23x + 127)/35

So, the simplified expression is (-23x + 127)/35.