Răspuns:
115-[7×5+19+(a+124×53):8]:10=5|-115
=[7×5+19+(a+124×53):8]:10=110|×10
=7×5+19+(a+124×53):8=1100
=35+19+(a+124×53):8=1100|-35
=19+(a+124×53):8=1065|-19
=(a+124×53):8=1046|×8
=a+124×53=8368
=a+6572=8368
a=8368-6572
a=1796
9-[36:9-(11+15:a-11)+0×9]=8|-9
=36:9-(11+15:a-11)+0×9=1
=4-(11+15:a-11)+0=1|-0
=4-(11+15:a-11)=1|-4
=11+15:a-11=3|+11
=11+15:a=14|-11
=15:a=3
a=15:3
a=5
Super ca te-am ajutat! :)