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9(4x-3)-3(7x+8)=7(x+3)-24 rezolvati ecuatia

Răspuns :

Douamii2
9(4x-3)-3(7x+8)=7(x+3)-24

36x-27-21x-24=7x+21-24

15x-27=7x+21

8x=48 ⇒ x=6
36x-27-21x-24=7x+21-24=>
12x-48=7x-3=>
12x-7x=48-3=>
5x=45=>x=45:5
=>x=9