Question

А) 2х=4/7 б)-10z=2/5 в)3х= -1/3

Answer 1

Ответ:

а) 2х = 4/7

х = 4/7 * 1/2

х = 2/7

б) -10z = 2/5

z = -2/5 *1/10

z = - 1/5 * 1/5

z = - 1/25

в) 3х = -1/3

х = - 1/3 * 1/3

х = -1/9

Answer 2

Sure, I can help you solve these equations for the respective variables (x and z).

a) 2x = 4/7:

To solve for x, we'll divide both sides of the equation by 2: $x = \frac{4}{7 \times 2} = \frac{4}{14} = \frac{2}{7}$

So, $x = \frac{2}{7}$.

b) -10z = 2/5:

To solve for z, we'll divide both sides of the equation by -10: $z = \frac{2}{5 \times -10} = \frac{-2}{50} = -\frac{1}{25}$

So, $z = -\frac{1}{25}$.

c) 3x = -1/3:

To solve for x, we'll divide both sides of the equation by 3: $x = \frac{-1}{3 \times 3} = \frac{-1}{9}$

So, $x = -\frac{1}{9}$.