Question

5-{-2-[3-(4-5)+2]-5}​

Answer 1

Explicação passo-a-passo:

5–{–2–[3–(4–5)+2]–5}

=5–[–2–(3–4+5+2)–5]

=5–(–2–3+4–5–2–5)

=5+2+3–4+5+2+5

=7+3–4+5+2+5

=10–4+5+2+5

=6+5+2+5

=11+2+5

=13+5

=18