Question

x-1=20????????????????​

Answer 1

Resposta:

se x for igual a 21 sim

Explicação passo-a-passo:

21-1 = 20

Answer 2

$\large \boxed{ \begin{array}{l} \rm \: x - 1 = 20 \\ \\ \rm \: x = 20 + 1 \\ \\ \boxed{ \boxed{ \rm{x = 21}}}\end{array}}$