Question

6+[15-(8:ax7+7)]x5=8:(1x4)+3x3

Answer 1

6+[15-(8:ax7+7)]x5=8:(1x4)+3x3
6+[15-(8:ax7+7)]x5=8:4+9
6+[15-(8:ax7+7)]x5=2+9
6+[15-(8:ax7+7)]x5=11
[15-(8:ax7+7)]x5=11-6
[15-(8:ax7+7)]x5=5
[15-(8:ax7+7)]=5:5
15-(8:ax7+7)=1
(8:ax7+7)=15-1
8:ax7+7=14
8:ax7=14-7
8:ax7=7
8:a=7:7
8:a=1
a=8