Answered

Welcome to Westonci.ca, where finding answers to your questions is made simple by our community of experts. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

3x-5y=-6
-9x-5y=18
whats the answer

Sagot :

luana
[tex] \left \{ {{3x-5y=-6\ \ | *3} \atop {-9x-5y=18}} \right. \\\\ \left \{ {{9x-15y=-18} \atop {-9x-5y=18}} \right. \\+----\\add\ both\ equations\\\\ -20y=0\ \ \ | divide\ by \ -20\\\\ y=0\\\\ 3x-5y=-6\ \ \ \ add\ 5y\\\\ 3x=-6+5y\ \ \ | divide\ by\ 3\\\\ x=\frac{-6+5y}{3}=\frac{-6+0}{3}=-2\\\\ x=-2\\ y=0[/tex]
apologiabiology
we can eliminate the  y term by multiplying by -1 and adding
-9x-5y=18
multiply -1
9x+5y=-18
add
     3x-5y=-6
  + 9x+5y=-18
     12x+0y=-24
12x=-24
divide by 12
x=-2

subsitute
3(-2)-5y=-6
-6-5y=-6
add 6 to both sides
-5y=0
y=0

x=-2
y=0
Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.