TRUEBOSS72
TRUEBOSS72 TRUEBOSS72
  • 12-03-2018
  • Mathematics
contestada

Please help me on this....

Please help me on this class=

Respuesta :

choixongdong
choixongdong choixongdong
  • 12-03-2018
8x + 4y = 16
x + 7y = 15
multiply second equation by (-8)
-8x - 56y = -120
so now
 8x + 4y = 16
-8x - 56y = -120
-----------------add
-52y = -104
y = 2


7(2) = 15 - x
14 = 15 - x
x = 1

answer is C. 
(1, 2)

Answer Link

Otras preguntas

How did machines speed up  textile manufacturing
in rabbits, black fur is dominant over white fur.  Show the cross of a heterozygous black male with a homozygous white female.
do you know 3 prime numbers that equal 32
what times what equal 16?
do you know 3 prime numbers that equal 32
How did machines speed up  textile manufacturing
how do you can you solve this problem 37 + y = 87; y =
You work at a clothing store, and your boss wants you to find out which type of shirt had the highest percentage of sales. You found that 13 out of 20 tank tops
You bought a car for $25,000. You have owned it for one year, and it is now worth $21,000. What is the percent decrease in your car's value?16%19%84%119%
Why did the Virginia Company give settlers the right to self-government?