Question

aflati valoarea lui x din:15:[11-(7×5-9×9:x:3):8+2×4]×3=3

Answer 1

15:[11-(35-9:x:3):8+8]=3:3=1 deci toata paranteza dreapta=15 rezulta 11-(35-9:x:3):8+8=15 ; 11- (35-9:x:3):8=15-8=7 ; (35-9:x:3):8=11-7=4 (35-9:x:3)=8*4=32 35-9:x:3=32 9:x:3=35-32=3 9:x=3*3=9 9:x=9 deci x=1

Answer 2

15:[11-(35-81: x:3):8+8]x3=3
15:[11-(35-81:x:3):8+8]=3:3
11-(35-81:x:3):8+8=15:1
11-(35-81:x:3):8=15-8
(35-81:x:3):8=11-7
35-81:x:3=4x8
81:x:3=35-32
81:x=3x3
81:x=9
x=81:9
x=9