Answered

Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Find reliable answers to your questions from a wide community of knowledgeable experts on our user-friendly Q&A platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

0.4x+0.5y=2.5

1.2x-3.5y=2.5




ELIMINATION BY USING MULTIPLICATION

Sagot :

Lilith
[tex]\begin{cases} 0.4x+0.5y=2.5\ \ /*7 \\ 1.2x-3.5y=2.5\end{cases} \\ \\ \begin{cases} 2.8x+3.5y=17.5 \\ 1.2x-3.5y=2.5\end{cases}\\ +\ \ -------- \\4x=20 \ \ /:4\\ \\x=5[/tex]

[tex]0.4x+0.5y=2.5\\ \\ 0.4*5+0.5y=2.5\\ \\2+0.5y=2.5\ \ | -2\\ \\0.5y=2.5-2\\ \\0.5y=0.5 \ \ :/ \ 0.5\\ \\ y=1 \\ \\ \begin{cases}\ \x=5 \\ y=1 \end{cases}[/tex]


We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.