melschell123 melschell123

01-02-2018
Mathematics

contestada

I need help with 3x-y=4 y=6-2x

Respuesta :

sqdancefan sqdancefan

05-02-2018

Since you have a "y=" equation, this is solved nicely by substitution.
.. 3x -(6 -2x) = 4
.. 5x -6 = 4
.. 5x = 10
.. x = 2
Then
.. y = 6 -2x
.. y = 6 -2*2 = 2

The solution is (x, y) = (2, 2).

Answer Link

Otras preguntas

In the late Middle Ages, there was a renewed interest in learning. What was the main cause of this?

A 2100 kg car starts from rest and accelerates at a rate of 2.6 m/s^2 for 4.0 seconds. Assume that the force acting to accelerate the car is acting in the same

Ned rode his bike 7 miles to the library. he took a shortcut on the way home which was only 5 miles long. how many miles did ned ride altogether?

Some warning signs for organizational _____ include excess administrative and support staff, cumbersome administrative procedures, lack of effective communicati

Jason makes 30 dollars an hour. He spends 40 dollars a day on transportation and food. Write an expression to describe his spending and earnings for a day, wher

One of the goals of the federal reserve is price stability. for the fed to achieve this goal, a. the level of unemployment should be low, less than 6%, and t

What was true about the expedition of lewis and clark apex?

Question 4 unsaved during a race, the body temperature of a runner increases. the runner responds by perspiring, which lowers body temperature. this process is

Priscilla can make three bracelets in 18 minutes at this rate how many bracelets can she make in 36 minutes?

While the First Great Awakening took place mostly in New England, the Second Great Awakening was more widespread but less significant for American society was