Question

Calculeaza 7425-2314 6243-4378 1219+4350 2418+3697 Stiind ca x+y=2015 si x+y+z=5102,calculeaza: z-(x+y)=? 10000-(x+y+z)-u=0 u=? ofer coroana

Answer 1

7425 - 2314 = 5111
6243 - 4378 = 1865
1219 + 4350 = 5569
2418 + 3697 = 6115

x + y = 2015
x + y + z = 5102
aflam pe z
2015 + z = 5102
z = 5102 - 2015
z = 3087

z - ( x + y ) = 3087 - 2015 = 1072

10 000 -( x + y + z )- u = 0
10 000 - (2015 + 3087) - u = 0
10 000 - 5102 - u = 0
4898 - u = 0
u = 4898