Question

2,5-[1,9-(-3,4+0,7+5,1)+6,2]

Answer 1

$2,5-[1,9-(-3,4+0,7+5,1)+6,2] \\ </p><p>2,5-[1,9-(-3,4+5,8)+6,2] \\ </p><p>2,5-[1,9-2,4+6,2] \\ </p><p>2,5-[1,9+3,8] \\ </p><p>2,5-[5,7] \\ </p><p>2,5-5,7 \\ </p><p>-3,2$

Espero ter ajudado...♡