Question

Ordinea operatilor si folosirea corecta a parantezelor. [7x3+2x9-30];3=? 100-[56+4x2-14;2]=? [36;6+42;7]-4x2= ?100-8x6+16;2=?      24+;8+32;4+79=? [6x2+4x0];4=? [24;4-3]x9+27=? [15+18;9+13];10=?  

Answer 1

[7×3+2×9-30]:3=
[21+18-30}:3=
[39-30]:3=
 9:3=3
100-[56+4×2-14:2]=
100-[56+8-7]=
100-[56+1]=
100-57= 43