23kelleytimothy
23kelleytimothy 23kelleytimothy
  • 19-02-2020
  • Mathematics
contestada

4x+2y=2

3x+y=4

substitution

and explain

Please help

Respuesta :

Аноним Аноним
  • 19-02-2020

x = 3,  y = -5 ( 3, -5)

Step-by-step explanation:

substitution

4x+2y=2 subtract 4x

2y = - 4x + 2  divide by 2

y = -2x + 1

Plug in y = -2x + 1  for y in the equation 3x+y=4 to find x value

3x+2x + 1=4 combine like terms

x + 1 = 4 make x alone/ subtract 1 from both sides

x = 3

Plug in x=3 into y = -2x + 1  to find y value

y = -2(3) + 1 multiply -2 by 3

y = -6 +1 combine like terms

y = -5

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