AaronB14 AaronB14
  • 20-09-2018
  • Mathematics
contestada

solve the simultaneous equations 3x + 2y = 16
. 2x + y = 9

Respuesta :

fjskweres
fjskweres fjskweres
  • 20-09-2018

From

3x + 2y = 16

2x + y = 9

solve the second equation for y and substitute it into the first equation...

y = -2x + 9

then

3x + 2(-2x + 9) = 16

3x - 4x + 18 = 16

-x = -2

x = 2

then

y = -2(2) + 9

y = 5

Answer Link

Otras preguntas

Write an equation for the linear function f with the given values of f(-4)=5,f(0)=2
the difference of twice a number and 10 is less than 24
An ideal gas is contained in a container of volume V at temperature T. If the volume is doubled at constant pressure, what will be the change in the temperature
A large cloud of dust and pollution that originates over southeast asia is
Tia Martinez has $200.25 deducted from her semimonthly pay for group health insurance. Rocky Mountain Ski Parts, her employer, pays 60% of the cost. What is Tia
Combining like terms 9x + 6y - 4x - 2y.
i gave my friend directions to my house i told her that my house was two blocks away from comerica park i used A .longitude/latitude B.movement C.relative locat
The united states is sovereign, but the city or town in which you live is not. do you think that your community should be sovereign? quizlet
Can someone give me 2 examples of alliteration from "The Rime of the Ancient Mariner". Note; Alliteration occurs when a series of words in a row have the same
A unique identifier of a chemical element determined by how many protons are found in the nucleus of an atom