NyahPenn NyahPenn

16-02-2018
Mathematics

contestada

what is the solution of the system of equations below 2x+3y=7 and x+y=3

Respuesta :

alexisbarrosop3phz3 alexisbarrosop3phz3

16-02-2018

2x+3y=7 (1)
x+y=3⇒x=3-y (2) substituting (2) in (1)
⇒2(3-y)+3y=7
⇒6-2y+3y=7⇒6+y=7⇒y=7-6⇒y=1
then, we know that: x=3-y ⇒x=3-(1)⇒x=2

Answer Link

Otras preguntas

how did people become slaves in ancient greece

why did the jews feel entitled to claim israel as their nation following to wwii

A hurricane destroyed all life forms on an island and washed away all the soil, leaving bare rock. In time, lichens grow in cracks in the rocks. What is occurri

what were the first two political parties and what did they believe

How did Jefferson's policies affect the preparedness of the United States for the war of 1812?

The Atlantic Charter confirmed that the United States and Great Britain believed in which of the following ideals? (5 points) Democratic nations lack the author

what does the mutual reward Theory state

Andrew Jackson was elected the seventh president of the United States in 1828. Jackson was the first president from the area _______ of the Appalachian Mountain

Tickets to the school play are $5.00 for adults and $3.50 for students. If the total value of all the tickets sold was $2517.50 and 100 more student bought tick

WILL GIVE AWARD!!!!******* Which of the following statements are true of BOTH Athens and Sparta? Select the best answer from the choices provided. Both cities h