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Quel est la solution de cette équation? 5 - 4a =7 + a
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5 votes
Quel est la solution de cette équation?
5 - 4a =7 + a

User Zebapy
by
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2 Answers

3 votes

Hello!

5 - 4a = 7 + a

-4a - a = 7 - 5

-5a = 2

a = 2/-5

a = -2/5

User Kevin Sun
by
4.0k points
6 votes

Answer:

a = -2/5

Explanation:

5 - 4a = 7 + a

- 4a - a = -5 + 7

-5a = 2

a = -2/5

--------------------------------

check

5 - 4(-2/5) = 7 + (-2/5)

0 = 0

the answer is good

User David Locke
by
4.1k points
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