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

Please help with this question! Thanks!! I will mark brainliest if it lets me!

Item 1 A bag contains 7 blue cards, 4 green cards, 6 red cards, and 8 yellow cards. You randomly choose a card. a. How many possible outcomes are there?

Your estimate that the length of a board is 24 feet. The actual length of the board is 22 feet. Find the percent error.

Which trait is used to evaluate the writer’s awareness of audience? A. sentence fluency B. conventions C. organization D. voice

PLZ HURRY IT'S URGENT!!!!! Which sentence contains an inappropriate shift in tense? A. I will have been cooking for the entire morning when the guests will ar

In which operant conditioning procedure are positive reinforcers given for desired behaviors?

PLZZ I will g ie you 100 pointd

!!~~ i could use some help (its multiple choice and i put more points)~~!! CAN YOU ALSO EXPLAIN TO ME WHY U PICKED THE ONE YOU PICKED LOL what are the first t

Help me help me help me help me

• Define and describe in detail (and in your own words) ultrasound and infrasound • Describe how ultrasound and infrasound are used in specific industrial appli