Question

ma gandesc la un nr il adun cu3200 scad 800si obtin 4000?

Answer 1

x+3200-800=4000
x+3200=4800
x=1600

Answer 2

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