2enminfgzq 2enminfgzq
  • 25-07-2022
  • Mathematics
contestada

Solve the congruence 3x=2(mod4)

Respuesta :

ghanami
ghanami ghanami
  • 25-07-2022

Answer:

Step-by-step explanation:

jello :

3x=2(mod4)

multiply by ; 5

5×3x=5×2(mod4)

15x=10(mod4)

but : 15= -1 (mod4)   and 10= 2 (mod4)

-x=2 (mod4)

now multiply by ; -1 you have :  x= -2 (mod4)

-2=2(mod4)

conclusion : x=2 (mod4)  means : x=4k+2   k in Z

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