bekah5332
bekah5332
04-02-2017
Mathematics
contestada
I'm lost.. How do you even start it???
Respuesta :
konrad509
konrad509
04-02-2017
[tex]2x+y=4\\ -x+y=1\\\\ 2x+y=4\\ \underline{x-y=-1}\\ 3x=3\\ x=1\\\\ 1-y=-1\\ y=2 [/tex]
Answer Link
wolf1728
wolf1728
04-02-2017
A) 2x + y = 4
B) -x + y = 1
Multiply B) by 2
B) -2x + 2y = 2 then add to A)
A) 2x + y = 4
3 y = 6
y = 2
B) -x + y = 1
-x +2 =1
x = 1
Answer Link
VER TODAS LAS RESPUESTAS ( 96+ )
Otras preguntas
In a household electric circuit the following devices are operated - a) 3 bulbs rated 40W for 5 hrs b) A heater rated 1500W for 3hrs c) A fridge rated 400W What
A technique in which writers meet with other writers to get feedback, or comments, on their work, is called _____
what is the purpose of a persuasive eassy
Why were community lands not recognized by U.S. lawyers?
Write your question here (Keep it simple and clear to get the best answer)give me examples of combined nouns plz
which form of carbon in the figure above is the hardest
How often should adult tetanus and diphtheria vaccination/booster be repeated?
Appreciate the need for specificity and relate this to the action of the above
When analyzing a passage for suspense, which feature is important to note?
A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 9% vinegar, and the second brand contains 14% vinegar. The chef wan
