Verified answer

Bonsoir,

a. - t - 4 = 8 + 7t

- t - 7t = 8 + 4

- 8t = 12

t = - 12/8

t = - 3/2

b. 13x+ 11 = 8x + 28

13x - 8x = 28 - 11

5x = 17

x = 17/5

x = 3,4.

Verified answer

Réponse :

Bonjour

Explications étape par étape

-t - 4 = 8 + 7t

7t + t = -4 - 8

8t = -12

t = -12/8

t = -3/2

13x + 11 = 8x + 28

13x - 8x = 28 - 11

5x = 17

x = 17/5