Question

-2x+3y=12. x=2-2x+3y=12. y=330 БАЛЛОВ

Answer 1

Добрый вечер. Ответ во вложении.

Answer 2

Вот ответ во вложение

Answer 3

It looks like there might be some confusion in the equations you provided. It seems like you want to solve a system of equations, but the second equation is not written correctly. Let's correct the equations and solve the system step by step.

The system of equations you want to solve is:

1. -2x + 3y = 12
2. x + 3y = 12

To find the values of x and y that satisfy both equations, we can use substitution or elimination method.

Method 1: Substitution Step 1: Solve one of the equations for one variable (e.g., x in terms of y or y in terms of x). Step 2: Substitute the expression found in step 1 into the other equation. Step 3: Solve the resulting equation for the remaining variable. Step 4: Once you have one of the variables, substitute its value back into one of the original equations to find the other variable.

Method 2: Elimination Step 1: Multiply one or both equations by suitable constants to make the coefficients of one variable cancel out when you add or subtract the equations. Step 2: Add or subtract the equations to eliminate one variable. Step 3: Solve the resulting equation for one of the variables. Step 4: Substitute the value found in step 3 back into one of the original equations to find the other variable.

Let's use the elimination method to solve the given system of equations:

1. -2x + 3y = 12
2. x + 3y = 12

Step 1: Multiply the second equation by 2 so that the coefficients of x in both equations will cancel out when added.

2(x + 3y) = 2(12) 2x + 6y = 24

Now the system of equations is:

1. -2x + 3y = 12
2. 2x + 6y = 24

Step 2: Add the equations together to eliminate x.

(-2x + 3y) + (2x + 6y) = 12 + 24 (2x - 2x) + (3y + 6y) = 36 9y = 36

Step 3: Solve for y.

y = 36 / 9 y = 4

Step 4: Substitute the value of y back into one of the original equations to find x. Let's use the second equation:

x + 3y = 12 x + 3(4) = 12 x + 12 = 12 x = 0

So, the solution to the system of equations is x = 0 and y = 4.