Предмет: Алгебра, автор: Аноним

помогите пожалуйста

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Ответы

Автор ответа: kslapinskayte

0

Ответ:

а не 4х?

я просто не знаб даже как еще решать

Автор ответа: kholyavskij

0

Ответ:

3x+x=4x

Объяснение:

Если у тебя дан пример с одинаковым неизвестным, тоесть одинаковые буквы x или y или вообще z, то числа, которые стоят перед x нужно складывать. Пример:

2х-х (перед значением х стоит 2, а во втором неизвестном перед х стоит 1 (всегда, если нет числа перед х, это значит, что там стоит 1))

Опишу подробно:

2х-1х. Тут уже как учил. Отнимаем первое от второго и получаем просто х.

При сложении вычитании, умножении и делении х НИКОГДА не вычитается!!!

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A have been signed C had been signed
B will sign D signed
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B started D had already been started
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B had been destroyed D have been destroyed
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A is building C had been built
B has been built D is being built
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A was discovered C had discovered
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A had taken part C have been taking part
B have taken part D took part
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A have you learnt C are you learning
B have you been learning D did you learn
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A had been doing C has done
B was done D has been done
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A are washed, are dried C washed, dried
B were washed, were dried D wash, dry
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A is serviced C is servicing
B was serviced D is being serviced
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A began C had begun
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A informed C am informed
B have been informed D was informed
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A is being repaired C is repairing
B was repaired D has been repaired
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A is looked C is being looked
B was looked D looks
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A will punish C were punished
B will be punished D will have punished
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A will deliver C will have been delivered
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