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 ( 72+ )
Otras preguntas
Many countries are considered mixed economies that combine elements of capitalism with elements of communism. True False
A company recorded an event that caused assets, liabilities and cash flow from financing activities to increase, but had no affect on net income. This event cou
Milly and Lotte are knitting scarves. For every 6 cm that Milly knits, Lotte knits 11 cm. If Milly knits a scarf that is 1.2 m long, how long will Lotte's scarf
how did world war ii affect the economy? - Apex A. it decreased the number of working women. B. It decreased employment. C. it increased the variety of consumer
Which of the following describes how a character changes over time? Group of answer choices character development character traits character motivations
help me pls I don't understand what I'm supposed to put here
Use the number line to find the coordinate of the midpoint of ¯¯¯¯¯¯ L P .
what is the term for an expert on a particular aspect of local life or someone who provides important insider descriptions and explanations to an anthropologist
Can somebody please help me right now??? i’m stuck and i need help with this bad
You want to take earnings from your part-time job to pay for a new laptop. Your monthly take-home pay is $500 and the laptop costs $1,200. What percentage of yo
