28-11-2020
Mathematics

contestada

2. 18x – 3y =21
y=6x - 7

Respuesta :

Аноним Аноним

28-11-2020

Answer:

x,y=(0,-7)

Step-by-step explanation:

Multiply eq2 by 3:

[tex]18x-3y=21\\18x+3y=-21[/tex]

Subtract:

[tex]-6y=42\\y=-7[/tex]

Substitute:

[tex]x=0[/tex]

Hope this helps :D

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