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 ( 56+ )
Otras preguntas
simplify(-8q3r4s2)2 A.64q9r16s4 B.-64q9r16s4 C.-64q6r8s4 D.64q6r8s4
what was one significant indication that the European feudal system was effective
Lindsey is writing a narrative about her trip to the beach . What order would be best for her choice A) pros and cons B) chronological order C) order of importa
British english contains more archaic words than does american english. truefalse
What is the probability? Thanks!
Which of these expressions have positive values? Select all that apply. 2(8) –10 ÷ 12 (–2)(–2) 10 ÷ (–20) 6(–8) –40 ÷ (–8)
Shelley drinks two caffeinated grande lattes every morning. in terms of neurotransmission, what is happening in shelley's body?
How many pilgrims are mentioned in the "prologue" besides chaucer? 12 24 29 30?
What is the mass of a hiker 200 m above the ground if her gpe is 117,600 j?
Which are accurate descriptions of comparative anatomy? Check all that apply. -may or may not include studies of structures with the same function -only involve
