Question

dac vlad ar diminua de 4ori lui de masinute ,ar mai avea cu 10 mai putin decat jumatate din cate are . ate masinute are vlad ?multe pucte.

Answer 1

x-nr masinute detinute de Vlad; x/4=x/2-10; x/2-x/4=10; x/4=10; x=40

Answer 2

x:4=x:2-10/x4
x=2x-40
2x-x=40
x=40
Vlad are 40 de masinute
verificare

40:4=40:2-10
10=20-10=10