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Which of these strategies would eliminate a variable in the system of equations?
2x - 6y=6
6x - 4y = 2

Respuesta :

Multiplying Equation 1 by 3 and then subtracting the equation 2 from it will eliminate a variable in the system of equations

Step-by-step explanation:

The elimination method involves eliminating one variable from the equations to find the value of other variable.

Given equations are:

[tex]2x-6y = 6\ \ \ \ \ \ Eqn1\\6x-4y = 2\ \ \ \ \ \ Eqn2[/tex]

In order to eliminate a variable, we have to equate the coefficients of one variable and then add/subtract the equations so that the variable cancels out.

We will multiply the first equation by 3 to equate the co-coefficients of x.

So,

Multiplying equation 1 by 3

[tex]3(2x-6y=6)\\6x-18y=18\ \ \ \ \ \ Eqn3[/tex]

As the coefficients of x are same in eqn 2 and eqn 3 so they both need to subtracted to eliminate x.

Hence,

Multiplying Equation 1 by 3 and then subtracting the equation 2 from it will eliminate a variable in the system of equations

Keywords: Linear equations, variables

Learn more about linear equations at:

  • brainly.com/question/10364988
  • brainly.com/question/10435816

#LearnwithBrainly

Answer:

Multiply the bottom equation by -3/2 then add the equations

And

Multiply the top equation by -3 then add the equations

Step-by-step explanation:

Those are the two answers for khan