Multiply each equation by a constant that would help to eliminate the y terms.


2 x minus 5 y = negative 21. 3 x minus 3 y = negative 18.


What are the resulting equations?

6 x minus 15 y = negative 63. Negative 15 x + 15 y = 90.

6 x minus 15 y = 63. Negative 15 x + 15 y = 90.

6 x minus 15 y = negative 63. Negative 15 x + 15 y = negative 90.

6 x minus 15 y = negative 63. Negative 15 x + 15 y = 90.

Respuesta :

Answer:

Therefore the required resulting equation is

[tex]6x-15y=-63\\-15x+15y=90[/tex]

6 x minus 15 y = negative 63.

Negative 15 x + 15 y = 90

Step-by-step explanation:

Given:

[tex]2x-5y=-21[/tex]         ......................Equation ( 1 )

[tex]3x-3y=-18[/tex]         ......................Equation ( 2 )

To Find:

Expression after multiplying to eliminate y term,

Solution:

So to eliminate 'y' term we need to multiply equation 1 by a constant 3 and equation 2 by a constant -5,  such that equations  becomes

[tex]3(2x-5y)=3\times -21\\\\6x-15y=-63[/tex] .....( 1 )

[tex]-5(3x-3y)=-5\times -18\\\\-15x+15y=90[/tex]  .....( 2 )

so now by adding new equation one and two we can eliminate y term that means -15y and +15y will get cancel,

Therefore the required resulting equation is

[tex]6x-15y=-63\\-15x+15y=90[/tex]

6 x minus 15 y = negative 63.

Negative 15 x + 15 y = 90

Answer:

It's A

Step-by-step explanation:

Got it right on the test

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