jacksondallasc
jacksondallasc jacksondallasc
  • 14-11-2021
  • Mathematics
contestada

Solve by elimination Solve by elimination or substitution: 4x + 2y = 6 and x - 3y = 5

Respuesta :

reinhard10158
reinhard10158 reinhard10158
  • 15-11-2021

Step-by-step explanation:

since we need to multiply only one equation with something, elimination might be a good method here. we bring both equations to 4x terms and then subtract the second from the first equation :

4x + 2y = 6

- 4x - 12y = 20

-----------------------

0 14y = -14

y = -1

=> e.g. in the second original equation

x - 3×-1 = 5

x + 3 = 5

x = 2

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