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

Explain the purpose of a key on a map
Put the definition of counterpart in less than 5 words
This nation is west of hungary and south of the czech republic
___________ is the rules for speaking or writing a language. a. Syntax b. Grammar c. Vocabulary d. Terminology
What is transferred by a force moving an object through a distance? A. force B. mass C. motion D. energy
Computer models can be touched.
Chintu and raven build a roccket, which moved from the earth to about 86m into the shy. It tales 3.7 seconds to reach the rocket highest point . what is his sp
Sugary sports drinks are the best for hydration. a. True b. False
Will the sum of two linear expressions each with an x-term , always,sometimes,or never have an x-term ? Explain your reasoning
The greatest of the common factors of two or more numbers is the blank common factor of the numbers