How to use Casio fx-991 EX ClassWiz Scientific Calculator to solve Simultaneous Equations 

Solving an equation by breaking it into a system of four linear equations and using Casio fx-991 EX ClassWiz to find the four unknown values.
#casio #casiocalculator #foryou #scientificcalculator #calculator #systemofequations #simultaneousequations #math #maths #study #linearequations #tutorial #education #howto #classwiz #technique #calculatortechnique #calculatortricks #mathsolver #solver