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

Which describes one part of the Columbian Exchange? A. Potatoes and tomatoes were introduced in the Americas. B. People from Africa were brought to the Americas
1.82 meters is How many yards
what are the main colors of art?
what are the 4 points of the Monroe Doctrine?
How many stressed syllables in the word enemy?
why would an asteroid have a difficult time of holding a probe or person?
Why might the construction of the roads have been so important to the spread Christianity throughout the Roman Empire?
where does the overwhelming amount of seismic activity occur on the earth's surface
Why might the construction of the roads have been so important to the spread Christianity throughout the Roman Empire?
Is (3,6) A Solution To y = 3x - 3 and y = 2x + 2 Plus I have to show work. >.< Due by tomorrow please help!!!!!!!!!!!!!