acortez2005p7o8ch acortez2005p7o8ch
  • 17-05-2020
  • Mathematics
contestada

Solve the system of linear equations by adding or subtracting.


3x + 7y = −17
4x − 7y = 10


Enter your answer as an ordered pair.

Respuesta :

ronhagrid310
ronhagrid310 ronhagrid310
  • 17-05-2020

Answer:

3x + 7y = −17

4x − 7y = 10

Add up both sides of 2 equations, then

7x = -7

=> x = 1

=> y =(3 x 1 - 17)/7 = -14/7 = -2

Hope this helps!

:)

Answer Link

Otras preguntas

Where do most drugs enter the bloodstream
A test has 10 true/false questions. How many different tests can be turned in to the teacher?
Tourist: "How many birds and lions do you have in your zoo?" Zookeeper:"There are 30 heads and 100 feet." Find the number of each animal. I need to know how to
What is the slope called if zero is on the numerator or top of the fraction?
Tourist: "How many birds and lions do you have in your zoo?" Zookeeper:"There are 30 heads and 100 feet." Find the number of each animal. I need to know how to
what are literary devices?
Find all zeros (real and complex) for the function f(x)=x^3-5x^2+9x-5
What is the slope called if zero is on the numerator or top of the fraction?
4 friends share 3 apples equally. What fraction of the apple does each friend get ?
A bone that is broken but does not pierce the skin is a what?