👤

Sagot :

AYUDA

bjr

on cherche la valeur de l'inconnue x

3 - 5x = 2

3 - 3 - 5x = 2 - 3

-5x = -1

-5x/5 = -1/5

x = 1/5

x = 0,2

(t-5) / 3 = 7

(t-5) / 3 x 3 = 7 x 3

t - 5 = 21

t - 5 + 5 = 21 + 5

t = 26

et

m/2 - 3 + 3 = 6 + 3

m/2 = 9

m/2 x 2 = 9x2

m = 18

Réponse:

a. -5x= -1

x= 1/5

b. t-5=21

t= 26

c. m/2=9

m= 18

Explications étape par étape:

a. 3-3-5x=2-3 <=> -5x=-1 <=> x=1/5

b. ((t-5)/3)×3 = 7×3 <=> t-5=21 <=> t-5+5=21+5 <=> t=26

c. m/2 -3+3=6+3 <=> m/2=9 <=> (m/2)×2=9×2=18

Other Questions

© 2024 IDNLearn. All rights reserved.