Simplifying+Expressions

__**Simplifying Expressions**__
by: Devon

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__**Cancellation Method**__
by: Karen

-The calculation method is known for being the act or instance of cancelling. Let's try it with this equation: 12x+y=126
 * When working on a problem that has more than one variable you ma have to use the cancellation method.

1. This is an equation that is usually used one a graph. The variable that we have to find out is "y". To do this y must be alone on the side it is on. First subtract -12x from both sides. This is shown in the example below. This will leave y alone on the side it is on, and the equation will now be y=126-12x.

example 1)12x+y=126 __-12x -12x__ y=126-12x

2. After this you must divide "Y" from not only 126, but -12x as well. Because y does not have a number in front of it y is divided by 1. The other numbers are divided by 1 as seen below. Because a number stays the same when it is divided by 1 y is equal to 126-12x. AS I said before these types of equations usually are used on graphs.

example 2)__y__=__126__+__12x__ stays y=126+12x 1 1 1