wendy2712
wendy2712 wendy2712
  • 26-03-2017
  • Mathematics
contestada

Solve the following system of equations by substitution.
2x - y = 6
x + y = 6

Respuesta :

awesome3768 awesome3768
  • 26-03-2017

y=-x+6

2x-(-x+6)=6

3x=12

x=4

4+y=6

y=2

Answer Link
irspow
irspow irspow
  • 26-03-2017
x+y=6 so y=6-x using this value for y in the other equation:

2x-(6-x)=6

2x-6+x=6

3x-6=6

3x=12

x=4, and since x+y=6, 4+y=6 so

y=2

So the solution is the point (4,2)


Answer Link

Otras preguntas

What is metafiction? - the act of telling a story becomes part of a story - literature that is part true and part false - when an author begins a story in the
Identify 2 reasons why offspring produced by sexual reproduction have more genetic variety
Two quantities of a data set have a strong positive correlation. Can the line of best fit for the data set have a correlation coefficient of 0.25 ?
what was the charlottesville rally supposed to be about
Which are solutions of the equation (x+5)(x - 3) = 0? Check all that apply. x= -15 x=-5 X=-3 x= 2 x=3 x=5 ای
Two jets leave an air base at the same time and travel in opposite directions. One jet travels 100 miles an hour faster than the other. If the two jets are 3924
A natural consequence of the government continually spending more than what it takes in through tax​ receipts, ceteris​ paribus, is that: A. consumption takes u
What is the factorization of the trino Mila below -x^2 + 2x + 48
on the coordinate plane, draw a triangle ABC with vertices A(-3,3),B(-3,-3), C(1,-3), find the area of the triangle in square units
Can anyone help? I really need it