Question

Afla numarul necunoscut din urmatoareleegalitati :

[(905-23x35):5x3:6]+a:6=170

ax4-[ ( 360-236 ) :4 -88:8]:10=94


3:a+[33:3-(13-9:3)+149x1]:3=51

ax2+(6x3x1-18:2+99:9):5-100:10=0



v roggg

Answer 1

[(905-23x35):5x3:6]+a:6=170
[(905-805):5x3:6]+a:6=170
(100:5x3:6)+a:6=170
(20x3:6)+a:6=170
60:6+a:6=170
10+a:6=170
a:6=170-10
a:6=160
a=960

ax4-[ ( 360-236 ) :4 -88:8]:10=94
ax4- (124 :4 -11):10=94
ax4-( 31 -11]:10=94
ax4-20:10=94
ax4-10=94
ax4=94+10
ax4=104
a=26

3:a+[33:3-(13-9:3)+149x1]:3=51
3:a+[11-(13-3)+149]:3=51
3:a+(11-10+149):3=51
3:a+150:3=51
3:a+50=51
3:a=51-50
3:a=1
a=3

ax2+(6x3x1-18:2+99:9):5-100:10=0 
ax2+(18-9+11):5-10=0 
ax2+(9+11):5-10=0 
ax2+20:5-10=0 
ax2+4-10=0 
ax2-6=0 
ax2=6
a=3