## Algebra 1

The Addition Property of Equality states that if $a=b$, then $a+c = b+c$. This property allows like terms to be combined, which is how equations can be added.
Example: $a=2x$, $b=2x$, and $c=3x$ $a + c = b + c$ $2x + 3x = 2x+ 3x$ $5x = 5x$