faimeghrian
faimeghrian faimeghrian
  • 07-08-2018
  • Mathematics
contestada

Solve, using linear combination.


5x – 2y = 14

3x + 2y = 18



(4, –5)

(5, 2)

(2, 1)

(4, 3)

Respuesta :

gmany
gmany gmany
  • 08-08-2018

[tex] \underline{+\left\{\begin{array}{ccc}5x-2y=14\\3x+2y=18\end{array}\right}\ \ \ |\text{add both sides of equations}\\.\ \ \ \ \ 8x=32\ \ \ |:8\\.\ \ \ \ \ \ x=4\\\text{substitute the value for x into either equation and solve for y}\\\\3(4)+2y=18\\12+2y=18\ \ \ |-12\\2y=6\ \ \ \ |:2\\y=3\\\\\text{Answer:}\ (4,\ 3) [/tex]

Answer Link
keitaronagame2219
keitaronagame2219 keitaronagame2219
  • 23-05-2022

Answer:

it's 4,3

Step-by-step explanation:

Answer Link

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