Question

how to solve equation with one variable

Answer 1

Hope this RANDOM example helps u understand the concept better

Answer 2

An equation has an equal sign. This makes it possible to find the one value the variable can be to "balance" the equation. 

To solve an equation, we isolate the variable (get the variable by itself on one side of the equation). This is done by "undoing" the operation on the variable. 

Example - $x+5=18$ 

$x=18-5$  $| isolate |$

$x = 13$