Find the best answers to your questions with the help of IDNLearn.com's expert contributors. Our experts are available to provide accurate, comprehensive answers to help you make informed decisions about any topic or issue you encounter.
Multiply (x-y=10) by -2. You will get -2x+2y=-20.then multiply by 1 2x-y=17 that give u the same thing. Cross out the -2x and 2x then subtract 2y by y which will leave u with y and subtract -20 by 17 that will leave with -3 . So y= -3
another way to do it is 2x-y=17 x-y=10, x=10+y substitute x=10+y for x in 2x-y=17 and get 2(10+y)-y=17 20+2y-y=17 20+y=17 subtract 20 from both sides y=-3 subsitute y=-3 into equation x-y=10 x-(-3)=10 x+3=10 subtract 3 from both sides x=7 or subsitute into 2x-y=17 2x-(-3)=17 2x+3=17 subtract 3 from both sides 2x=14 divide both sides by two x=7
We are happy to have you as part of our community. Keep asking, answering, and sharing your insights. Together, we can create a valuable knowledge resource. Your search for answers ends at IDNLearn.com. Thank you for visiting, and we hope to assist you again soon.
