Question

Afla valoarea necunoscutei : {380+[500-(a×9-395)]}:6=97
Va rog ajutati ma !!!!!

Answer 1

{380+[500-(a×9-395)]}:6=97
380+[500-(ax9-395)] = 97x6 =582
500-(ax9-395) = 582-380 = 202
ax9-395 = 500-202 = 298
ax9 = 298+395
ax9 = 693
a=693:9
a = 77

Answer 2

{380+[500-(a×9-395)]}:6=97
380+[500-(a×9-395)]=97×6
380+[500-(a×9-395)]=582
500-(a×9-395)=582-380
500-(a×9-395)=202
a×9-395=500-202
a×9-395=298
a×9=298+395
a×9=693
a=693:9
a=77