Log2 (4-x)=9 log2 (4+x)=7 log3 (13+x)=log3 2

Question

Log2 (4-x)=9
log2 (4+x)=7
log3 (13+x)=log3 2

Answer 1

1)4-х=2^9
Х=-508
2)4-х=2^7
Х=-124
3)13+Х=2
Х=-11
но я не уверена