Question

0,5x-7y=-5 -0.5x+13y=11​

Answer 1

Ответ:

у=1

х=4

Пошаговое объяснение:

0,5х-7у=-5

+

-0,5х+13у=11

__________

6у=6

у=1

0.5х-7=-5

0.5х=2

х=4

Answer 2

It looks like you've provided a system of two linear equations with two variables, $x$ and $y$:

Equation 1: $0.5x - 7y = -5$ Equation 2: $-0.5x + 13y = 11$

You can solve for the values of $x$ and $y$ by using various methods, such as substitution or elimination. Let's use the elimination method in this case:

Step 1: Multiply both sides of Equation 1 by 2 to eliminate decimals: $1x - 14y = -10$

Now you have the following system of equations:

Equation 3: $1x - 14y = -10$ Equation 2: $-0.5x + 13y = 11$

Step 2: Add Equation 3 and Equation 2 to eliminate $x$: $(1x - 14y) + (-0.5x + 13y) = (-10) + 11$ $0.5x - y = 1$

Now you have a new equation:

Equation 4: $0.5x - y = 1$

Step 3: Solve Equation 4 for $x$: $0.5x = y + 1$ $x = 2y + 2$

Step 4: Substitute the expression for $x$ from Equation 4 into Equation 1: $0.5x - 7y = -5$ $0.5(2y + 2) - 7y = -5$ $y + 1 - 7y = -5$ $-6y + 1 = -5$ $-6y = -6$ $y = 1$

Step 5: Substitute the value of $y$ back into the expression for $x$: $x = 2y + 2$ $x = 2(1) + 2$ $x = 4$

So, the solution to the system of equations is $x = 4$ and $y = 1$. The values of $x$ and $y$ that satisfy both equations are $x = 4$ and $y = 1$.