# Equation (+ what is the unknown) - Examples, Exercises and Solutions

## Value

### What is value?

Value in mathematics indicates how much something is worth numerically.

### What is the value of the function?

The word value signifies how much the function "is worth" – that is, what the value of $Y$ will be in the function when we substitute any number in $X$.

### What is a table of values?

The values in the value table indicate how much $Y$ of a function will be worth when we substitute $X$ with different values.

### What is absolute value?

The distance of the number in absolute value from the digit $0$.
It will always be positive because it is a distance.

## examples with solutions for equation (+ what is the unknown)

### Exercise #1

$5x=0$

### Video Solution

$x=0$

### Exercise #2

$5x=1$

What is the value of x?

### Video Solution

$x=\frac{1}{5}$

### Exercise #3

$\left|18\right|=$

### Video Solution

$18$

### Exercise #4

$\left|-2\right|=$

### Video Solution

$2$

### Exercise #5

$\left|3\right|=$

### Video Solution

$3$

### Exercise #6

$\left|0.8\right|=$

### Video Solution

$0.8$

### Exercise #7

Find a y when $x=2$

$y=5x$

10

### Exercise #8

Calculate y given that $x=2$ and $y=x$.

### Video Solution

$2$

### Exercise #9

$14x+3=17$

### Video Solution

$x=1$

### Exercise #10

Find a y when x=2

$y=\frac{1}{2}x$

### Video Solution

$1$

### Exercise #11

$\left|x\right|=$

### Video Solution

$x$

### Exercise #12

$\left|3^2\right|=$

### Video Solution

$9$

### Exercise #13

$\left|-19\frac{1}{4}\right|=$

### Video Solution

$19\frac{1}{4}$

### Exercise #14

Find a y when x=2

$y=x-8$

### Video Solution

$-6$

### Exercise #15

$−\left|-18\right|=$

### Video Solution

$-18$