Simultaneous Equations Graphically Solve Graphically The System Of Equations
WebAlgebra Solve by Graphing xy=8 xy=2 x y = 8 x y = 8 x − y = 2 x y = 2 Subtract x x from both sides of the equation y = 8− x y = 8 x x−y = 2 x y = 2 Subtract x x from bothWeb2 x − y = 8 (1) x 2 y = 9 (2) Multiply (2) by 2 2 x 4 y = 18 Subtract (1) from this equation 2 x 4 y = 18 minus 2 x − y = 8 Yields 3 y = 10 This is an equation in only one variable, so
