Raydoubleog Raydoubleog
  • 12-02-2021
  • Mathematics
contestada

2. Which variable will eliminate? *
3x +6y=27
-3x+8y= 1

Respuesta :

sarannl
sarannl sarannl
  • 12-02-2021
9x=27
x=3
———
-3*3+8y=1
5\4
Answer Link
jimrgrant1 jimrgrant1
  • 12-02-2021

Answer:

the x variable

Step-by-step explanation:

Given the 2 equations

3x + 6y = 27 → (1)

- 3x + 8y = 1 → (2)

Since the signs of the coefficients of x are opposite, then adding them will eliminate the x- term, that is

Add (1) and (2) term by term

0 + 14y = 28

14y = 28 ( divide both sides by 14 )

y = 2

Then substitute y = 2 into either equation for corresponding value of x

Answer Link

Otras preguntas

A striped marlin can swim at a rate of 70 miles per hour. Is this a faster or slower rate than a sailfish, which takes 30 minutes to swim 40 miles? Show your wo
ASAP can someone help me think of a title for the question :Which water has the greatest and least amount of ph levels ?be creative.Thank you !!!!! :D (if you
represent the amount one tenths in four ways
I need help with number 2 please
Whats bigger 33% or 0.4?
Under the encomienda system, victorious conquistadors were made over the land.
detemina cordonatele geografice ale punctului de confluenta a riurilor tigru si eufrat va rog frumos repede si corect va dau 20 de puncte
The North planned to blockade Southern ports as part of the war strategy. a. True b. False
A computer that hosts and runs the software for a Web site is called: A) a web drive. B) a web client. C) a web server. D) a web notebook.
The reciprocal of frequency is