Solving Simultaneous Equations Part 1:
To solve a set of simultaneous equations, order the equations as if you were solving them by elimination. Then, the numerator of the variable you are solving for is the coefficient of the other variable in the first equation times the constant in the 2nd equation minus the coefficient of the other variable in the 2nd equation times the constant in the first equation. The denominator of the variable you are solving for is the coefficient of the variable you are solving for in the 2nd equation times the coefficient of the other variable in the first equation minus the coefficient of the variable you are solving for in the first equation times the coefficient of the other variable in the 2nd equation. An example is shown in the video.
Vedic Math for Kids 