Answered

IDNLearn.com offers a comprehensive solution for finding accurate answers quickly. Find accurate and detailed answers to your questions from our experienced and dedicated community members.

-2x-9y=-25 and -4x-9y=-23 solve by elimination

Sagot :

Brennanlew23idn

First let's take our two given equations

-2x-9y=-25

-4x-9y=-23

Now we need to cancel out either x or y by making them the same values, but opposite on being negative or positive

We do this by multiplying the entire equation by a number

-1(-4x-9y=-23)=4x+9y=23

Now we have a new equation

-2x-9y=-25

4x+9y=23

Combine the two equations and your y will cancel out

2x=-2

Now we need to find x

2x=-2

Divide by 2 on each side

x=-1

Now we need to plugin our x to find the y by plugging the x into any of the first given equations

-2(-1)-9y=-25

2-9y=-25

-2        -2

-9y=-27

Divide by -9 on each side

y=3

x=-1, y=3

Your participation is crucial to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and see you next time for more reliable information.