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bryson15 bryson15
  • 17-01-2017
  • Mathematics
Answered

Find a solution to the following system of equations. –5x + y = –5 –4x + 2y = 2

A(0, 1)

B(–8, –15)

C(2, 5)

D(–2, –15)

Verified Answer :

texaschic101
texaschic101 texaschic101
  • 17-01-2017

-5x + y = -5.....multiply by -2
-4x + 2y = 2
---------------
10x - 2y = 10 (result of multiplying by -2)
-4x + 2y = 2
-----------------add
6x = 12
x = 12/6
x = 2

-5x + y = -5
-5(2) + y = -5
-10 + y = -5
y = -5 + 10
y = 5

solution is (2,5)

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