Question

{10+[5×(4+2×5)-8]×2}-124
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Answer 1

{10+[5×(4+2×5)-8]×2}-124
[10+(5×14-8)×2]-124
(10+62x2)-124
134-124=10

Answer 2

{10+[5×(4+2×5)-8]×2}-124
{10+[5×(4+10)-8]×2}-124
{10+[5×14-8]×2}-124
{10+[70-8]×2}-124
{10+ 62×2}-124
{10+ 124}-124
134-124
10