Answer:
[tex]\large \boxed{\displaystyle y = \frac{1}{5} x + 2}[/tex]
[tex]\large \boxed{\displaystyle y = x - \frac{1}{4}}[/tex]
[tex]\large \boxed{y=-2x+4}[/tex]
Step-by-step explanation:
[tex]5y - x = 10[/tex]
Add x to both sides
[tex]5y = x + 10[/tex]
Divide both sides by 5
[tex]\displaystyle y = \frac{1}{5} x + 2[/tex]
[tex]-4y + 4x = 1[/tex]
Subtract 4x from both sides
[tex]-4y = -4x + 1[/tex]
Divide both sides by -4
[tex]\displaystyle y = x - \frac{1}{4}[/tex]
[tex]3y+6x=12[/tex]
Subtract 6x from both sides
[tex]3y=-6x+12[/tex]
Divide both sides by 3
[tex]y=-2x+4[/tex]
