Inequality

[Guest]

How do I solve for Y?:
3x - 8y <= 77

 

[stapel]

How would you solve "3x - 8y = 77" for y? Do the same steps here. (But keep in mind that, if you at any point multiply or divide through by a negative, you'll have to flip the inequality sign around.)

Eliz.

 

[Guest]

So is this right?:
3x - 8y <= 77
-8Y<=-3x+77
Y>=-3/8x-77/8

 

[stapel]

Almost. What should be the final sign on -3 ÷ -8?

Eliz.

P.S. In mathematics, "y" and "Y" are not the same variable. Don't get in the habit of changing variables willy-nilly; it'll cause you trouble later on, and tick your teachers off even now.