Question

-10 x +13y +9=0.27x-19y+24=0;​

Answer 1

-10x=-13v-9
x=13/10v+9/10


и второе
27х-19у+24-24=0-24
27х-19у=-24


надеюсь верно....

Answer 2

Ответ:

(1,2;3).

Пошаговое объяснение:

Решаю методом сложения.

-10x+13y+9=0

27x-19y+24=0

-10x+13y=-9 | 27

27x-19y=-24 | 10

-270x+351y=-243

270x-190y=-240

_____________

-270x+351y+270x-190y=-243-240

-270x и 270x - зачёркиваем.

351y-190y=-483

161y=-483

y=3

y=3

27x-19y+24=0

27x-19*3+24=0

27x-57=-24

27x=-24+57

27x=33

x=1,2

Ответ: (1,2;3).

Answer 3

You've provided two linear equations in two variables, x and y:

1. -10x + 13y + 9 = 0.27x - 19y + 24 = 0

It seems like you have a mistake in the way the equation is written. Typically, linear equations are written as separate equations, like this:

1. -10x + 13y + 9 = 0
2. 0.27x - 19y + 24 = 0

Now, we can work with these equations to find the solution. Let's solve this system of equations using the method of substitution or elimination:

First, let's rearrange the equations to isolate one variable:

From equation 1: -10x + 13y = -9

From equation 2: 0.27x - 19y = -24

Now, we can use the elimination method to solve for one variable. Let's eliminate the y variable:

Multiply equation 1 by 19 and equation 2 by 13 to make the coefficients of y in both equations equal:

Equation 1 (multiplied by 19): -190x + 247y = -171

Equation 2 (multiplied by 13): 3.51x - 247y = -312

Now, add these two equations to eliminate y:

(-190x + 247y) + (3.51x - 247y) = -171 - 312

Combine like terms:

-186.49x = -483

Now, isolate x by dividing both sides by -186.49:

x = (-483) / (-186.49)

x ≈ 2.59

Now that we have found the value of x, we can substitute it into either equation 1 or 2 to find the value of y. Let's use equation 1:

-10x + 13y = -9 -10(2.59) + 13y = -9

-25.9 + 13y = -9

Now, add 25.9 to both sides:

13y = 16.9

Finally, divide by 13 to solve for y:

y ≈ 16.9 / 13

y ≈ 1.3

So, the solution to the system of equations is approximately x ≈ 2.59 and y ≈ 1.3.