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Solve the systems of equations x+8y=2 2y-x=18

We pick one of the equations and isolate the y on one side.
x+8y = 22y=18+x
We express the equation 2 in terms of y, dividing it by 2.
x+8y = 2y = (18+x)/2
which is the same than

Answered by Victoire L. • French tutor

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What is the difference between the imperfect past tense and the simple past tense?

The imperfect past tense is used when:-speaking of an event in the past that has happened repeatedly (eg: tous les jours j'allais à l'école)-describing a person, object or event in the past (eg: il avait ...

Answered by Charles S. • French tutor

1703 Views

When do I need to make past participle agreements?

You should make the past participle agree with its subject in the following cases:
1) It is a past participle of an ordinary verb conjugated with ETRE E.g. je suis all...

Answered by Aoife M. • French tutor

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What is the pluperfect tense and how is it formed?

The pluperfect tense is used when talking about events and actions that happened back in the past before a later time in the past where something else happened. It is the english equivalent of e.g. I had ...

Answered by Caterina P. • French tutor

1764 Views

When do I use it and how do I use the past perfect?

The past perfect is used to describe a past action that happened before another past action.It expresses the anteriority of a past action, compared to another past action expressed by the simple past, t...

Answered by • French tutor

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