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105-2x[11+5 x 3-(4+8)]

Răspuns :

105-2x[11+5 x 3-(4+8)]
=105-2 ( 11+5×3-12)
=105-2( 11+15-12)
=105-2( 26-12)
=105- 2 ×14
=105-28
=77
105-2x(11+5x3-12)=
105-2x14=
105-28=77