Question

O valor de "x" na expressão 2x - 1 = 9 é:

Answer 1

2x-1=9
2x=9+1
2x=10
x=10/2
x=5

Answer 2

Olá

$2x - 1 = 9 =\ \textgreater \ 2x = 9+1 =\ \textgreater \ 2x = 10 =\ \textgreater \ x = 10/2 =\ \textgreater \ x = 5$