Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Join our platform to get reliable answers to your questions from a knowledgeable community of experts. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.
Sagot :
-2x - y = -9
y = -2x + 9
5x-2(-2x + 9) = 18
5x - (-4x +18) = 18
9x -18 = 18
9x = 36
x=4
-2x - y = -9
-2(4) - y = -9
-8 - y = -9
-y = -1
y = 1
Point of intersection: (4,1)
y = -2x + 9
5x-2(-2x + 9) = 18
5x - (-4x +18) = 18
9x -18 = 18
9x = 36
x=4
-2x - y = -9
-2(4) - y = -9
-8 - y = -9
-y = -1
y = 1
Point of intersection: (4,1)
[tex]\begin{cases} -2x-y=-9 \\ 5x-2y=18 \end{cases}\\\\ \begin{cases} y=-2x+9 \\ 5x-2y=18 \end{cases}\\\\substitution \\\\ 5x-2 \cdot (-2x+9)=18 \\5x+4x-18=18 \\9x-18+18\\9x=36\ \ /:9\\x=\frac{36}{9}\\x=4\\=================\\y=-2x+9 \\y=-2 \cdot 4+9 =-8+9=1\\ \\Answer:\\\\\begin{cases} x=4 \\ y=1 \end{cases}[/tex]
We hope this information was helpful. Feel free to return anytime for more answers to your questions and concerns. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.