Question

How do you solve `3+ y \geq 2.4`?

Answer 1

`y>=-0.6`

Explanation:

The key realization is that we want to undo any operation being applied to `y`. Right now, it is only being added to some value, so we want to subtract that value to solve for it.

Let's subtract `3` from both sides. We get

`y>=-0.6`

Hope this helps!

Answer 2

`y\ge-1.6`

Explanation:

`\color(blue)(3)+y\ge\color(blue)(2.4)`
Combine like terms by isolating variable.

`\cancel(\color(blue)(3)\color(skyblue)(-3))+y\ge\color(blue)(2.4)\color(skyblue)(-3)`
`y\ge2.4-3\rArr-1.6`
`\thereforey\ge-1.6`