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Gordo1
a fost răspuns

rezolvati in R ecuatia:4x+11+5 (x+4)=2x+3
repedeee va rogggg

Răspuns :

Icecon2005
4x+11+5 (x+4)=2x+3

4x+11+5x+20=2x+3

9x+31=2x+3

9x - 2x = 31 - 3

7x = - 28

x = - 4∈R
4x+11+5x+20=2x+3
4x+5x-2x=-11-20+3
7x=-28
x=-28/7
x=-4