Question

Vā imploor ajutor!!!

Answer 1

Răspuns:

1)

$x+9*18=875\\\\x=875-(9*18)\\\\x= 875-162\\\\x=713$

2)

$17*28+x=2000\\\\x=2000-(17*28)\\\\x= 2000-476\\\\x=1524$

3)

$x-384:3=219\\\\x= 219+(384:3)\\\\x= 219+128\\\\x=347$

4)

$135*7-x=23*12\\\\x=(135*7)-(23*12)\\\\x=945-276\\\\x= 669$