sheimeyer sheimeyer
  • 21-01-2020
  • Mathematics
contestada

Y=x+5
4x+y=20

Solve by substitution

Respuesta :

Anthonyg72
Anthonyg72 Anthonyg72
  • 21-01-2020
The answer would be x=3
Answer Link
belgrad belgrad
  • 21-01-2020

Answer:

The solution of the given system is (3,8)

Step-by-step explanation:

step 1:-

Given equations are y= x+5......(1)

                                4 x+y=20.......(2)

Step 2:-

Adding both equation (1) and (2) equations and cancelled 'y' terms , we get

[tex]5 x-15=0[/tex]

[tex]x=3[/tex]

Step 3:-

Substitute x= 3 value in equation (1)

[tex]y=3+5[/tex]

[tex]y=8[/tex]

Final answer:-

The solution of the given system is (3,8)

Answer Link

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