Blog #1 (1/6/14)

Today in Mathland (1/6/14), we basically relearned how to do systems of linear equations. A system is when we are given two or more variables in an equation and are given two or more different types of equations in order to solve for those variables. An example of this could be x+y=2 and x-y=4. The way we learned to solv this is with the use of substitution. Since in equation2 x =y+4 we can replace the x in equation one with the value we found for x. Through algebra y=-1 and we can now substitute back in any equation to find x which is 3.