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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

1341 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

1216 Views

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

1425 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

1219 Views