Question

x x 3/7+2x/14=6/7
dau coroana​

Answer 1

Răspuns:

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

Explicație pas cu pas:

$x*\frac{3}{7} + \frac{2x}{14} = \frac{6}{7}$

$\frac{3x}{7} + \frac{x}{7} = \frac{6}{7}$

$\frac{4x}{7} = \frac{6}{7}$   ⇒ 4x = 6  ⇒  $x = \frac{6}{4} = \frac{3}{2}$

Answer 2

$\it x\cdot\dfrac{3}{7}+\dfrac{2x}{14}=\dfrac{6}{7}\Big|_{\cdot14} \Rightarrow 6x+2x=12 \Rightarrow 8x=12|_{:4} \Rightarrow 2x=3|_{:2} \Rightarrow x=1,5$