Question

How to solve a linear equation

Answer 1

Solving a linear equation is simple...
In a linear equation any number of variables can be found.
To solve them first find the number of variables in the equation.
If the equation contain only one variable,say x, by taking x as common in the equation will help us to solve it.
But if the equation contain two variables we need to have two equations in order to solve it.
For eg if the equations are
x+y=1
x-y=2
Write either of the equation in any of the variable
ie x+y=11
=> y=11-x
By substituting this into the other equation, x-y=2
=> x-(11-x)=2
=> 2x=13
=> x=13/2

ie to solve a linear equation first find the number of variables. Then there must be an equivalent number of equations too to solve them. If you have ten variables you should have 10 equations to solve them.