Question

dada a função f(x)=-2x+3,determine: f(x)=1/3

Answer 1

f(x) = -2.x +3

f(x) = 1/3

1/3 = -2.x +3

-2.x = 1/3 -3

-2.x = (1-9)/3

-2.x = -8/3

2.x = 8/3

x = 8/3 / 2

x = 8/6

x = 4/3

Dúvidas só perguntar!

Answer 2

Explicação passo-a-passo:

$f( x) = - 2x + 3$

$f(x) = \frac{1}{3}$

$- 2x + 3 = \frac{1}{3}$

$- 2x = \frac{1}{3} - 3$

$- 2x = \frac{1}{3} - \frac{9}{3}$

$- 2x = - \frac{8}{3}$

$x = \frac{ \frac{ - 8}{3} }{ - 2}$

$x = ( - \frac{8}{3} )( - \frac{1}{2} )$

$x = \frac{4}{3}$