ymskids
ymskids
13-01-2015
Mathematics
contestada
how do you do x=2y+3
2x-3y=4
Respuesta :
luana
luana
13-01-2015
[tex] \left \{ {{x=2y+3} \atop {2x-3y=4}} \right. \\\\2(2y+3)-3y=4\\4y+6-3y=4\\4y-3y=4-6\\y=-2\\\\x=2\cdot(-2)+3\\x=-4+3\\x=-1\\\\ \left \{ {{y=-2} \atop {x=-1}} \right. [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 53+ )
Otras preguntas
How many solutions does this equation have? 3s = 8s -5s A one solution C no solution B two solutions D infinite
Which of the following living reptiles care for their young and have a four-chambered heart, as birds do? a. Turtles b. Crocodiles c. Lizards d. Snakes e. Tuata
Jordan wants to put wire fence around each of his tomato plants. He has a partial roll of fencing which is 18 1/6 feet long. How many tomato plants will Jordan
What is the best way to remember the Nervous pathways?
What pair of factors of -28 has a sum of -3
When is the best time to have an in-depth discussion of the art that you viewed in a gallery? If you do not like the art At a different location after you leave
What is the value of x? -5x = 60
Actual answer not a riddle what word starts with t ends with t and has t in it
Solve for x. Round to the nearest tenth, if necessary. X=???
If your state has a property tax rate of 0.056, and you pay $3,164.45 in property taxes every year, what is the assessed value of your property? a. $177,209 b.
