idekmanda
idekmanda idekmanda
  • 06-04-2021
  • Mathematics
contestada

Solve the following system of equations using Desmos.....x-3y=-2 and x+3y=16

Respuesta :

jimrgrant1 jimrgrant1
  • 06-04-2021

Answer:

(7, 3 )

Step-by-step explanation:

Given the 2 equations

x - 3y = - 2 → (1)

x + 3y = 16 → (2)

Adding (1) and (2) term by term will eliminate the y- term

2x + 0 = 14

2x = 14 ( divide both sides by 2 )

x = 7

Substitute x = 7 into either of the 2 equations and solve for y

Substituting into (2)

7 + 3y = 16 ( subtract 7 from both sides )

3y = 9 ( divide both sides by 3 )

y = 3

solution is (7, 3 )

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