mipe3ggyfKidgemissy
mipe3ggyfKidgemissy mipe3ggyfKidgemissy
  • 02-10-2016
  • Mathematics
contestada

−5x − 8y = 17 2x − 7y = −17

Respuesta :

phicxs
phicxs phicxs
  • 02-10-2016
Elimination Method

-5x - 8y = 17 (×2)
2x - 7y = -17 (×5)

-10x - 16y = 34
10x - 35y = -85
____________
-51y = -51
y = 1

-5x - 8(1) = 17
-5x - 8 = 17
-5x = 17 + 8
-5x = 35
x = -7

(-7, 1)
Answer Link

Otras preguntas

In which quadrant does the terminal side of a 135° angle in standard position lie?
is a mirror transparent, translucent or opaque?
where is the blue point on the number line
What problem is caused by maps being two dimensional?
14/9 as a mixed number
Find the total surface area of a trapezoidal prism.
You would use quotation marks to punctuate the title of a
the area of a square is 576 square inches what is the length of one side of the square
An old theory about the position of planets and the sun in the galaxy has been replaced by a new theory. Which of these statements is correct about the two theo
Sexual awareness is usually not a significant issue during adolescence. True or False? Sexual awareness is usually not a significant issue during adolescence.