Question

A number b minus 4.2 is less than −7.5

Answer 1

B - 4.2 < -7.5
subtract b and 4.2 
less then sign is <
then <-7.5

Answer 2

Answer:

Given: A number b minus 4.2 is less than -7.5.

Here, b is the number.

"less than" symbol is represented by '<'

"minus" means subtract.

"b minus 4.2" translated to  b - 4.2

Then, our inequality becomes;

$b - 4.2 < -7.5$

To solve for b;

Add 4.2 both sides we get;

$b -4.2 + 4.2 < -7.5 + 4.2$

Simplify:

$b < -3.3$

Therefore, an inequality for the given word sentence is,  $b - 4.2 < -7.5$