ilovecandy1
ilovecandy1 ilovecandy1
  • 21-01-2017
  • Mathematics
contestada

Solve using elimination.

5x – 9y = -7
-x + 9y = -13

Respuesta :

foggles
foggles foggles
  • 21-01-2017
(1) 5x - 9y = -7
(2) -x + 9y = -13

(1)+(2):

(1a) 4x = -20
x = 5

∴ 5(5) - 9y = -7
∴ 9y = 32
∴ y = (32/9)


x = 5
y = (32/9)
Answer Link

Otras preguntas

A smartphone costs $120. Sales tax is 8%. What is the total cost, including tax?
Which statement describes the motion of the water molecules in this situation? The water molecules move by active transport into the cell from low water concen
I WILL AWARD BRAINLIEST!! PLEASE HELP!! GIVE EXPRESSION FOR EACH!!Write the absolute value equations in the form |x-b|=c (where b is a number and c can be eithe
"He was clearly in touch with his root" what does this statement mean?​
What are the different types of rigorous courses,and what type of credit do they award
After Athens lost the Peloponnesian War to Sparta, the rights of its citizens were sharply limited. A group called the Thirty Tyrants ruled Athens. What of thes
what does sum mean I don't know how to do it plz help​
How many shapes to make a rectangle
Which is a warning sign that someone needs the help of a mental
The Supreme Court case marbury v. Madison happens because