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

How long does it take for sunlight to reach pluto?
rounded to the nearest dime what is the greatest amount of money that rounds to $105.40? what is the least amount of money that rounds to $105.40? explain your
State governments may do all of the following with the exception of? A) allowing the sale of firearms. B) requiring professionals to have licenses. C) controlli
Mel bought some shirts for $15 each, Joe bought 3 less shirts than Mel for $18 each together they spent $111 how many shirts did each person buy
Read the prompt for a formal e-mail. Write a letter to the school board in which you propose turning part of the schoolyard into a garden. What is the purpose
What are 3 reasons that mexicans moved to the united states between 1900 and 1950?
what is a cumulative preferred
-8c-9d-5c-2d I Need help
reaction rates do not tell you how fast a. reactants are being consumed. b. products are being formed. c. substances are changing state. d. energy is being abso
Which of the following products has the government helped to innovate? Select all that apply.