Question

ma gandesc la un numar. il adun cu 3200 ’scad 800si obtin 4000. la ce numar m-am gandit?

Answer 1

$(x+3200)-800=4000$
$x+3200=4000+800$
$x+3200=4800$
$x=4800-3200$
$x=1600$

Answer 2

(x+3200)-800=4000
x+3200=4000+800
x+3200=4800
x=4800-3200
x=1600
VERIFICARE 1600+3200-800=4000