Compare and contrast solving a system of three equations to solving a system of two equations.

Comparations:You are still solving for variables in both systems of equations,You can still use the substitution and elimination method for both systems to solve for the variables.Contrasts:With a system of three equations, you are solving for 3 variables, whereas a system of two equations you are solving for 2 variables.While both are a similar process, solving a system of three equations is much lengthier process because you are solving for more variables.

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volume of sphere =4/3.pi.r^3