Question

Rezolvati in R ecuatia:
$5(3x - 6) +4(3 - 2x) = 5x - 8$

Answer 1

15x - 30 + 12 - 8x = 5x - 8 
7x  - 18 = 5x - 8 
7x - 5x = 18 - 8 
2x = 10 
x = 10 : 2 
x = 5 

Answer 2

desfacem parantezele
15x-30+12-8x=5x-8
15x-8x-5x=-8-12+30
2x=10
x=5
S={5}