Question

Rezolvați {[(x+18):2]-125 } ×4=800

Answer 1

$[(x+18):2]-125=800:4 \\ (x+18):2=200+125 \\ x+18=325*2 \\ x=650-18 \\ x=632$

Answer 2

{[(x+18):2]-125 } ×4=800=>[(x+18):2]-125=200=>(x+18):2=325=>x+18=650=>x=632
Proba:
{[(632+18):2]-125 } ×4=[(650:2)-125]x4=(325-125)x4=200*4=800