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Bonjour, j’ai besoin d’aide pour mon exercice de math

a. 2t - 5 = 5t + 1
c. 3t - (1 – t) = 7
b.3-7x = 3x + 2
d. 2(1 - 4t) = t + 3




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Maudmarineask

Bonjour

a. 2t - 5 = 5t + 1

2t - 5t = 1 + 5

- 3t = 6

t = - 6/3

t = - 2

c. 3t - (1 – t) = 7

3t - 1 + t = 7

3t + t = 7 + 1

4t = 8

t = 8/4

t = 2

b.3-7x = 3x + 2

- 7x - 3x = 2 - 3

- 10x = - 1

x = 1/10

d. 2(1 - 4t) = t + 3

2 - 8t = t + 3

- 8t - t = 3 - 2

- 9t = 1

t = - 1/9.

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