So, we start off with this:
[tex]-3 = 7(y- \frac{9}{7} )[/tex]
First, use the distributive property on the right side of the equation:
[tex]7(y - \frac{9}{7} ) = 7y - \frac{63}{7} [/tex]
We can then simplify [tex] \frac{63}{7} [/tex] to just 9. Now, our equation is:
[tex]-3 = 7y - 9[/tex]
Add 9 to both sides:
[tex]6 = 7y[/tex]
And finally, divide both sides by 7:
[tex]\frac{6}{7} = y [/tex]
And there you have it! Hope I helped, let me know if you have any questions :)
