Question

10y−9x=−9 10y+x=2 х- у-

Answer 1

Ответ:

x = -7/10

y = 27/100

Объяснение:

10y−9x=−9

10y+x=2

подставляем значение 10y  в уравнение

решаем:

2 - x - 9x = 9

подставляем x  в любое уравнение

10y = 2 + 7/10

y = 27/100

Answer 2

It looks like you have a system of linear equations:

1. $10y - 9x = -9$
2. $10y + x = 2$

You can solve this system of equations using various methods. One common approach is the substitution method. Let's solve for one of the variables in one equation and then substitute it into the other equation.

From the second equation, solve for $x$: $x = 2 - 10y$

Now substitute the value of $x$ into the first equation:

$10y - 9(2 - 10y) = -9$

Simplify the equation:

$10y - 18 + 90y = -9$

Combine like terms:

$100y = 9 - 18$

$100y = -9$

Divide both sides by 100:

$y = -\frac{9}{100}$

Now that we have the value of $y$, we can substitute it back into the equation for $x$:

$x = 2 - 10y$ $x = 2 - 10 \cdot \left(-\frac{9}{100}\right)$ $x = 2 + \frac{90}{100}$ $x = 2 + \frac{9}{10}$ $x = \frac{29}{10}$

So, the solution to the system of equations is $x = \frac{29}{10}$ and $y = -\frac{9}{100}$.