bewellplus.gsu.edu
toaster toaster
  • 23-04-2014
  • Mathematics
Answered

use substitution to solve the sytem: 5x-3y=-20 and x=3y-16

Verified Answer :

brainlydotcom
brainlydotcom brainlydotcom
  • 23-04-2014

5(3y-16)-3y = -20
15y-80-3y = -20
12y = 60
y = 5

Answer Link
xlmichael xlmichael
  • 23-04-2014

\(5x - 3y = -20\)
\(x = 3y - 16\)

Plug in 'x' into the first equation:

\(5 (3y - 16) - 3y = 20\)
\(15y - 80 - 3y = -20\)
\(12y = 60\)
\(y = 5\) 

Plug in 'y' into the second equation to get 'x':

\(x = 3y - 16\)
\(x = 3(5) - 16\)
To get \(x = -1\)

\(y = 5\)
\(x = -1\)

Answer Link

Related Questions

What is the primary source of uncertainty over the limits on presidential power
9 Which one of these sentences might best end in an exclamation point A Saturday is the best day to visit the museum B Its that man again C A raven was a dista
explain why bacteria in the soil are necessary in this ecosystem
How did Carroll Reed and Lazear assist in Cubas progress as a nation
Youve been asked to find the largest number in a range of numbers Which of the following could you use to find the largest number in range E11E23 A MINE11E23 B
find the slope of the line that goes through the given points 85 67
what are the frequencies of EM spectrum
4 A cinder block is sitting on a platform 20 m high It weighs 79 N The block has energy Calculate it 5 There is a bell at the top of a tower that is 45 m high T
Twain in The Lowest Animal sets off to disprove that animals are superior to humans tf
having a bit of trouble solving this problem