Question #437c3

1 Answer
May 26, 2017

the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formula and equations.

Explanation:

Algebra is most commonly used with missing number and variables. It uses equations that need to be solved in order to find a missing length, value, weight, etc.

Example:

If #10=2x-2#, what is the value for #x#?

To solve this you must first add the #2# to both sides.

#10color(red)(+2)=2x-2color(red)(+2)#

#12=2x#

The you divide the both sides by #2#

#12/color(red)(2)=(2x)/color(red)(2)#

So #x=6#

Hope this helps a bit!