Question

A number d minus 2 is less than -1 ?

Answer 1

Given phrase,

a number d minus 2 is less than -1

∵ '-' is the sign of minus,

⇒ d minus 2 = d - 2

Also, '<' is the sign of less than,

⇒ d minus 2 is less than -1 = d - 2 < - 1

Hence, the required inequality would be,

`d-2 < -1`

Now, by further solving,

Add 2 on the both sides of inequality ( additive property of inequality )

`d < -1 + 2\implies d < 1`

⇒ d ∈ ( -∞, 1 )

Answer 2

d - 2 < -1 is how this inequality would be displayed.

However, we can solve for the value of d by treating this like a standard algebraic equation.

d - 2 < -1

Add 2 to both sides.

d < 1

The value of d is less than 1.

Let me know if you have any other questions.