youtube.com › watchSolve 3 linear equations with 3 unknowns (XYZ) | Casio fx-115ES and fx-991ES Calculator
Today, I like to share with you about solving 3 linear equations with 3 unknowns using the calculator. The typical linear equations are shown below: a1X + b1Y + c1Z= d1 ---- 1st a2X + b2Y + c2Z= d2 ---- 2nd a3X + b3Y + c3Z= d3 ---- 3rd where, a, b, c and d are the known constant number for 1st linear equation X, Y and Z are the 3 unknowns, this ...