Question

P.A (8,3x,4,x,0) qual o valor d x?

Answer 1

Propriedades das PAs

$\frac{8+4}{2} = 3x$

$\frac{12}{2} = 3x$

$6 = 3x$

$\frac{6}{3} = x$

$2 = x$

Logo, x = 2.