Solve the system of equations below by graphing both equations with a pencil and paper. what is the solution?

y = -x + 21
y = -2x + 30

Four equations are shown below.equation 1: y=2*equation 2: y=2x-5equation 3: y=x2 + 6equation 4: tdentify one linear equation and one nonlinear equation from the list.why each equation you identified is linear or nonlinear.nd one nonlinear equation from the list. state a reasonlinear equation