👤

rezolvati ecuatia: 4(5x-12)-34=118

Răspuns :

118+34=152
4(5x-12)=152
5x-12=152:4
5x-12=38
5x=38+12
5x=50
x=50:5
x=10
20x-48-12=118
20x-60=118
20x=178
x=178/20
x=89/10
x=8,9