Question

resolva as equações do 1 grau: a) 6(x+5)=2(2x+17). b) 9x+10=55​

Answer 1

Resposta:

$A) \: 6(x+5)=2(2x+17)$

$6x + 5 = 2 + 2x + 17$

$6x - 2x = 2 + 17 - 5$

$4 \times = 14$

$x = \frac{14}{4}$

$x = 3.5$

$B) \: \: 9x+10=55$

$9x = 55 - 10$

$9x = 45$

$x = \frac{45}{9}$

$x = 5$