Answered

Looking for reliable answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

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

Sagot :

brennanlew23

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

Thank you for trusting us with your questions. We're here to help you find accurate answers quickly and efficiently. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.