Question

X+y=14 6x-3y=30 Найдите систему уравнения Помогите пожалуйста

Answer 1

Ответ:

Объяснение:

у=14-х

6х-3*(14-х)=30

6х-42+3х=30

9х=30+42

9х=72

Х=72/9

Х=8

у=14-х

у=14-8

у=6

Answer 2

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Answer 3

System of Equations

To solve the system of equations:

Equation 1: x + y = 14 Equation 2: 6x - 3y = 30

We can use various methods such as substitution, elimination, or matrix methods. Let's solve it using the substitution method.

Substitution Method

We can solve Equation 1 for x and substitute it into Equation 2:

From Equation 1, we have x = 14 - y.

Substituting this value of x into Equation 2:

6(14 - y) - 3y = 30

Simplifying the equation:

84 - 6y - 3y = 30 84 - 9y = 30 -9y = 30 - 84 -9y = -54 y = -54 / -9 y = 6

Now, substitute the value of y back into Equation 1 to find x:

x + 6 = 14 x = 14 - 6 x = 8

Therefore, the solution to the system of equations is x = 8 and y = 6.

Solution

The solution to the system of equations is x = 8 and y = 6.