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Ionutciobanu999
a fost răspuns

rezolvati in multimea nr reale ecuatia 4(x-3)+1=2x+7

Răspuns :

Mihaelap
4x - 12 + 1 = 2x + 7
4x - 2x = 7 + 12 - 1
2x = 18
x = 9
Botan
4(x-3)+1=2x+7 4x-12+1=2x+7 4x-11=2x+7 4x-2x=7+11 2x=18|:2 x=9∈R