jazzieeilish jazzieeilish

04-03-2018
Mathematics

contestada

how do you do the elimination method? Example: -8+6y=2;16x-3y= -13

(click on picture to see the full thing)

how do you do the elimination method Example 86y216x3y 13 click on picture to see the full thing class=

Respuesta :

Wizkid8402 Wizkid8402

04-03-2018

Double the first equation to get
-16x+12y=4

Add that to the second equation and get
9y=-9
y=-1

Then we solve for x. Let's plug y into the first equation.
-8x+6y=2
-8x-6=2
-8x=8
x=-1

y=-1
x=-1

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04-03-2018

I will attach the picture
first step is to multiply the first equation by 2

Ver imagen mumsy

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