Question

(6×4-i×3)+9×4=3×10+3×3 primu

96-(8×4+a×3)=5×6+19

96-(9×5-9×i)=5×6+57


96-(5×5+a×6-40)×2=9×10

Answer 1

(6×4-i×3)+9×4=3×10+3×3 (24-i×3)+36=30+9 (24-i×3)+36=39 (24-i×3)=39-36 (24-i×3)=3 i×3=3+24 i×3=27 i=27:3 i= 9 primul

Answer 2

(24-3i)+36=30+9
24-3i+36=39
24+36-39=3i
60-39=3i
21=3i
i=21:3=7

96-(32+3a)=30+19
96-49=32+3a
47-32=3a
15=3a
a=5

96-(45-9i)=30+57
96-87=45-9i
9=45-9i
9i=45-9
9i=36
i=4
96-(25+6a-40)×2=90
96-90=(25+6a-40)×2
6=(25+6a-40)×2
25+6a-40=12
6a=12+40-25
6a=52-25
6a=27