Jsnowidn
Answered

IDNLearn.com is the perfect place to get answers, share knowledge, and learn new things. Our community is ready to provide in-depth answers and practical solutions to any questions you may have.

I have to use elimination
-6x-6y=6
12x+12y=-12

Sagot :

[tex]\left\{\begin{array}{ccc}-6x-6y=6&|divide\ both\ sides\ by\ 6\\12x+12y=-12&|divide\ both\ sides\ by\ 12\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-x-y=1\\x+y=-1\end{array}\right}\ \ \ |add\ both\ sides\ of\ the\ equations\\.\ \ \ \ \ \ \ \ 0=0\leftarrow TRUE\\\\therefore\\\\ infinitely\ many\ solutions\Rightarrow \left\{\begin{array}{ccc}y=-x-1\\x\in\mathbb{R}\end{array}\right[/tex]
Apologiabiologyidn
-6x-6y=6
12x+12x=-12

multiply first equaltion by 2
-12x-12y=12
add to second equation
12x-12x+12y-12y=12-12
0=0
this means that they are the same equation and you really have one equation, but modified

an easy way to find the solution is to make one side equal to one of the placeholders exg y=x+930

12x+12y=-12
divide both sdides by 12
x+y=-1
subtrac x from both sdies
y=-x-1
subsitute values for x and get values for y exg
if x=1 then y=-2
if x=-1 then y=0
if x=0 then y=-1
We value your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. Your questions deserve precise answers. Thank you for visiting IDNLearn.com, and see you again soon for more helpful information.