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

Help me with 1-8 please!
which is the best description of how physical geography impacted westward expansion in the United States?
Solve for x. Use the quadratic formula. 3x2+7x+3=0 Enter the solutions, in simplified radical form, in the boxes. x = or x =
For an amendment to be added to the U.S. Constitution, the amendment has to be a) ordered by the president and then passed by both houses of Congress b) pa
What is the total amount of sap trees produced that day? Please tell me ASAP(as soon as possible) because this lesson is due for a grade tomorrow and I’m stuck
Name examples of collective behavior (think of some on your own). what does this mean?
According to Newton's first law of motion, what is required to make an object slow down? Enter your answer in the space provided.
Explain the impact of the Versailles peace treaty
what could happen if you use to much clip art and animation in your presentation? 1. b 2. a 3. b
What are the steps in the election process in india