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Cristina1r Cristina1r
  • 17-09-2015
  • Mathematics
Answered

Y=5x+19

-4x-2y=18

How do I solve this system?

Verified Answer :

TSO
TSO TSO
  • 17-09-2015

\(y=5x+19\\ -4x-2y=18\)

Lets solve it by substitution

\(-4x-2(5x+19)=18\\-4x -10x- 38 = 18\\-14x -38=18\\-14x = 56\\\\x = -4\)

Now we plug x = -4 and solve for y

\(y=5x+19\\y = 5(-4) + 19\\y=-20 + 19\\\\y = -1\)

So the solution is (-4,-1)

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