Question

ayuda!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
61 = a₁ + (4 - 1)*16

Answer 1

$61 = a_{1} + (4 - 1) \times 16$

$61 = a_{1} + (3) \times 16$

$61 = a_{1} + 48$

$61 - a_{1} = 48$

$- a_{1} = 48 - 61$

$- a_{1} = - 13$

$a_{1} = 13$

Espero haber ayudado.