heatherhughes108
heatherhughes108 heatherhughes108
  • 05-02-2017
  • Mathematics
contestada

Solving a linear equation using the substitution method.

2y-x=3
y-x=4

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 05-02-2017
solve for 1 variable
solve for y in 2nd
y-x=4
add x
y=4+x
su that for y in other

2(4+x)-x=3
8+2x-x=3
8+x=3
minus 8
x=-5
sub back
y=x+4
y=-5+4
y=-1


(x,y)
(-5,-1)
Answer Link

Otras preguntas

please help im begging the two article names are "each in his place" and "who were the maya" you have read two articals about maya society. write an essay in wh
A population of bacteria is increasing by 10% cach hour. Find the percentage increase in the population every 3 hours.​
In a mass extinction, many species become extinct at the same time. scientists have concluded that a mass extinction killed the dinosaurs and other species, in
Which solution would have the highest concentration of [H+] ions? O a solution with a pH of 8 O a solution with a pH of 12 O a solution with a pH of 10 a soluti
A car’s tire rotates 5.25 times in 3 seconds. What is the tangential velocity of the tire?
explain how you know that \sqrt{37} is a little more that 6.
Determine the values of k for which the function f(x) = 4x^2-3x + 2kx + 1 has two zeros. Check these values in the original equation. ​
Kala drove 603 miles in 9 hours at the same rate how many miles would she drive in 12 hours
Thermohaline circulation _______. a. supplies heat to polar regions b. causes salt lake formation c. causes oxbow lake formation d. is unaffected by heat fluctu
Find the area of the circle