Răspuns :
(30+4j-8):6=7;
(30+4j-8)=6×7;
30+4j-8=42;
4j-8=42-30;
4j -8=12;
4×j=8+12;
4×j=20;
j=20:4;
j=5
(30+4j-8)=6×7;
30+4j-8=42;
4j-8=42-30;
4j -8=12;
4×j=8+12;
4×j=20;
j=20:4;
j=5