👤

1000-a×[100÷(7×12-74)-5]=500

Răspuns :

1000 - a * [100 : (7 * 12 - 74) - 5] = 500
- a * [100 : (84 -74) - 5] = - 1000 + 500
a * [100 : 10 - 5] = 500
a * 5 = 500
a = 500 : 5
a = 100
= 1000-a•[100:(84-74)-5]=500
=1000-a•[100:10-5]=500
=1000-a•[10-5]=500
=1000-a•5=500
a•5= 1000-500
a•5= 500
a= 500:5
A= 100
Sper ca te-am ajutat !