Use Euler's method with step size 0.1 to estimate y(0.5), and z(0.5) where y(x) and z(x) form the solution of the initial-value problem for the system of differential equations y = 3x + z?, y(0) = –1,...

Extracted text: Use Euler's method with step size 0.1 to estimate y(0.5), and z(0.5) where y(x) and z(x) form the solution of the initial-value problem for the system of differential equations y = 3x + z?, y(0) = –1, Z = -4x + y, z(0) = 1. y(0.5) = z(0.5) =