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a fost răspuns

Cum se calculeaza 3 (5x-2)-5 (x-3)+8=2-5 (4x-9)

Răspuns :

Ralucap12345678
15 x-6-5x+15+8=2-20x+45
10x + 17 = 47 - 20x
10x+20x = 47 - 17
30x = 30
x=1
15*-6-5+15+8=2-20*+45
10*+17=47
10*-20*=47-17
30*=30*=1