Question

determinati nr natural x care verifica egalitatile
15+(x+2+21=47
2•x+37=79-14
32+(2•x-5)=63+14

Answer 1

x+23=47-15=>x=32-23=>x=9
2x=65-37=>x=28:2=>x=14
2x-5=77-32=>2x=45+5=>x=25