Answered

Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

9x-2y=19 7x=21 can you please help me answer this question

Sagot :

We have such system of eq
[tex] \left \{ {{9x-2y=19} \atop {7x=21}} \right. [/tex]
First lets solve second eq
7x=21   /:7   divide both sides by 7
x=3
Now we can substitute it to first equation
9x-2y=19
9*3-2y=19
27-2y=19    /-27 subtract 27 both sides
-2y=-8     /:(-2)  divide both sides by -2
y=4 - its the answer

We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. We hope this was helpful. Please come back whenever you need more information or answers to your queries. Thank you for choosing Westonci.ca as your information source. We look forward to your next visit.