Question

determina numărul natural a din:
7x2 + { 4x [7x4 + (a+2) :6 ] -5 }:5=37




dau corona​

Answer 1

14+{4*[28+(a+2) :6] -5}= 37*5

14+{4*[28+(a+2) :6] -5}= 185

4*[28+(a+2) :6] -5= 185-14

4*[28+(a+2) :6] -5= 171

4*[28+(a+2) :6]= 171+5

4*[28+(a+2) :6]= 176

28+(a+2) :6= 176 :4

28+(a+2) :6= 44

(a+2) :6= 44-28

(a+2) :6= 16

a+2= 16*6

a+2= 96

a= 96-2

a= 94