Question

+3{+2+(+11-15)-[+5+(-3+1)]+8}

Answer 1

+3 {+2+(+11-15) - [+5+(-3+1)]+8}

+3 {+2 +(-4) - [+5 - 2]+8}

+3 {+2 - 4 - 3 + 8 }

+3 { -2 + 5 }

+3 + 3 = 6


☆Espero ter ajudado!