Question

Write an inequality - 4 mutilplied by a number is less than or equal to - 16

Answer 1

start by giving the number a variable

number = x

now continue by writing the left part of the inequality multiplying by -4

$-4\cdot x$

remember that when writing <,> , they are always pointing to the smaller one.

Continue by completing the right side

$-4\cdot x\leq16$

Simplify by dividing by -4 on each side

$\begin{gathered} -4\cdot x\leq16 \\ -\frac{4}{-4}\cdot x\leq\frac{16}{-4} \\ x\leq-4 \end{gathered}$

answer:

In order to fulfill the inequality x must be less than or equal to -4-

REMEMBER

When the exercise says

Less than we use symbol

$<$

Less than or equal to we use the symbol

$\leq$

Greater than we use the symbol

$>$

Greater than or equal to we use the symbol

$\ge$