[tex]180(n - 2) = 160 \\ 180n - 360 = 160 \\ 180n = 160 + 360 \\ 18 0n = 520 \\ n = \frac{520 {}^{ \div 20} }{180 {}^{ \div 20} } \\ \boxed{\boxed{\boxed{n = \frac{26}{9} }}} \\ [/tex]

atte. yrz

Verified answer

Resposta:

[tex]n = \frac{26}{9} [/tex]

Explicação passo-a-passo:

[tex]180(n - 2) = 160[/tex]

[tex](n - 2) = \frac{160}{180} [/tex]

[tex]n - 2 = \frac{8}{9} [/tex]

[tex]9n - 18 = 8 \\ 9n = 8 + 18 \\ 9n = 26 \\ n = \frac{26}{9} [/tex]