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

Răspuns :

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

15x - 51= 7x -3

15x-7x= -3 + 51

8x = 48=> x= 48/8 = 6

36x-27-21x-24=7x+21-24
36x-21x-7x=21-24+27+24
8x=48
x=6