Question

1,1-0,1z=-1,9-0,7z-0,2x+4=-2+0,1x​

Answer 1

Ответ:

$1.1 - 0.1z = - 1.9 - 0.7z \\ - 0.2x + 4 = - 2 + 0.1x \\ 1) - 0.1z + 0.7z = - 1.9 - 1.1 \\ 0.6z = - 3 \\ z = - 5 \\ 2) - 0.2x - 0.1x = - 2 - 4 \\ - 0.3x = - 6 \\ x = 20$

Пошаговое объяснение:

Переносим неизвестные в одну, изветстные множители в другую сторону и решаем

Answer 2

It looks like you have a system of linear equations. Let's solve it step by step.

The given equations are:

1. $1.1 - 0.1z = -1.9 - 0.7z$
2. $-0.2x + 4 = -2 + 0.1x$

For the first equation, let's simplify it first:

$1.1 - 0.1z = -1.9 - 0.7z$

Combine like terms:

$1.1 + 1.9 = -0.1z - 0.7z$

$3 = -0.8z$

Now, divide by -0.8 to solve for $z$:

$z = -\frac{3}{0.8} = -3.75$

Now that we know the value of $z$, let's substitute it back into the second equation to find $x$:

$-0.2x + 4 = -2 + 0.1x$

Add $0.2x$ to both sides:

$4 = -2 + 0.1x + 0.2x$

$4 = -2 + 0.3x$

Add 2 to both sides:

$6 = 0.3x$

Now, divide by 0.3 to solve for $x$:

$x = \frac{6}{0.3} = 20$

So, the solution to the system of equations is $x = 20$ and $z = -3.75$.