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Equation in the form of ax+by+c =d is known as Linear equation. A system
of linear equation can be solved using graphical method, substitution and elimination
A quadratic ( Genera; format ax^2+bx+c =0) or exponential ( Genera; format y = n e^x ) or polynomial equations ( Genera; format ax^n+bx^m+cx =0) is known as non linear equation .
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