Question

calcule 6+8-[-(4+7-8)] =

Answer 1

calcule 6+8-[-(4+7-8)] =

= 6+8-[-(4+7-8)]
= 6+8-[-(11-8)]
= 6+8-[-(3)]
= 6+8-[-3]
= 6+8+3
= 14+3
= 17