Question

Resolva as equações do 1" grau em R
A) 5x-1=15

B) 7(x-1) =14

Answer 1

Olá,

A)

$5x - 1 = 15$

$5x = 15 + 1$

$5x = 16$

$x = \frac{16}{5}$

B)

$7(x - 1) = 14$

$x - 1 = \frac{14}{7}$

$x - 1 = 2$

$x = 2 + 1$

$x = 3$