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 ( 95+ )
Otras preguntas
What are your thought toward the right of American citizens and do it matter at the time
If f(x)= 3x2- 2x + 3 then find what f(3) is equal to
Briefly describe how risk-taking behavior in adolescence is connected to brain maturation.
Please helppp!!Two plane mirrors make an angle of 15°. A light ray enters the system andis reflected once off each mirror. Through what angle is the ray turned?
Which equation can be used to calculate the area of the shaded triangle in the figure below? A rectangle with length of 14 feet and width 4 feet. A diagonal cut
Talik was looking at a video game that was priced at 35.88 however he also knows the sales tax is 8% of the total amount be added to the price how much was the
Which function is represented by the graph?
do you consider the marshall plan and berlin airlift to have been successful? explain
What is the equivalent resistance of a series circuit with the following resistors: 10 ohms, 35 ohms, and 150 ohms?
flame tests are used to identify
