Joshua10687
Joshua10687 Joshua10687
  • 23-02-2019
  • Mathematics
contestada

Please help me


3x - 12y = 60

x + 2y = 14

will mark brainliest

Respuesta :

Diamori
Diamori Diamori
  • 23-02-2019

Answer:

x = 8, y = 3

Step-by-step explanation:

3x - 12y = 60

x + 2y = 14

3x - 12y = 60

3x + 6y = 42 (multiply by 3 so the x is the same as the top equation)

6y = 18 (subtract the equations)

y = 18 / 6

= 3

To find x, substitute y into the 2nd equation since it is the simplest so:

x + 2(3) = 14

x + 6 = 14

x = 14 - 6

= 8

Answer Link

Otras preguntas

What states can electrons exist in
PLEASE HELP!, URGENT! Which equation has infinitely many solutions? -6.8+3y+2.4=4.3-3y 1/3y+2.5-2/3y=1.2 5.1+2y+1.2=-2+2y+8.3 2/5y=2.3+3/2y
Sines/ Cosines topic. In the triangle below round to the nearest tenth. Include explanation if possinle
Write at least 150 words about changing your speech for different social situations
which excerpt is an example of the authors use of ethosnis danation of a canyon
Identify the mean and standard deviation of the graph
Multiply (x+3)(x-3) A) x^2 +6x+9 B) x^2 -9 C) x^2 + 6x-9 D) x^2 - 6x +9
The sum of two angles is 180 and the angles have a ratio of 7:8. What is the number of degrees in the smaller angle?? Please explain!!
which excerpt is an example of the authors use of pathos in the danation of a canyon?
Which number below is a prime number? A. 33 B. 37 C. 22 D. 48