livi02
livi02
27-01-2018
Mathematics
contestada
Algebra 1. Please show work.
Respuesta :
evgeniylevi
evgeniylevi
27-01-2018
Try this:
Given:
[tex] \left \{ {{x-y=1} \ [1] \atop {x+y=3} \ [2]} \right. [/tex]
1) [1]+[2]: 2x=2 ⇒ x=2
2) [2]-[1]: 2y=1 ⇒ y=1.
3) answer: (2;1)
Answer Link
VER TODAS LAS RESPUESTAS ( 72+ )
Otras preguntas
HELP ASAP with this question.
What is the connotation and denotation of bony
In which layer(s) would a solid cube with 6 cm sides and mass of 270 g float? Explain.
What is another way to write 3x1,000 + 3x10 + 3x 1/100 + 3x 1/1000
Please answer and explain.
Which are the three classes of nutrients that supply your body with energy? A) carbohydrates, fats, and proteins B) carbohydrates, vitamins, and proteins C)
What are the body's adverse reaction to introducing an excessive amount of toxic substances in the system?
Lorelle pays someone $35 to clear her driveway when it snows. She wants to buy an electric snow blower for $689 so that she can clear her own driveway. If the a
The Mississippi river would be open for trade to the Americans and the British according to what?
How many electrons belong to a neutral atom with an atomic mass of 36 amu?
