Bonjour pouvez vous m'aidez pour ces exercices svp ? (le 26 , 27 et 29 ) merci d'avance.... Pergunta de ideia dejulieleagym

julieleagym @julieleagym

January 2021 1 24 Report

Bonjour pouvez vous m'aidez pour ces exercices svp ? (le 26 , 27 et 29 ) merci d'avance

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maudmarine

Verified answer

Bonsoir,

26)
a) x + 3 = 1
x = 1 - 3
x = - 2

b) 9 + y = 15
y = 15 - 9
y = 6

c) 5 - x = 4
- x = 4 - 5
- x = - 1
x = 1

d) a + 1 = 5
a = 5 - 1
a = 4

e) - 10 - b = - 2
- b = - 2 + 10
- b = 8
b = - 8

f) 7 = - x - 1
- x - 1 = 7
- x = 7 + 1
- x = 8
x = - 8

27)
a) 2x = 4
x = 4/2
x = 2

b) - 5y = 10
y = - 10/5
y = - 2

c) 5x = - 8
x = - 8/5

d) - 4a = - 5
a = 5/4

e) - 10b = - 2
b = 2/10
b = 1/5

f) 24 = - 12x
- 12x = 24
x = - 24/12
x = - 12

1 votes Thanks 2

julieleagym Merci énormément !

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