Math input panel
%20=%20Piecewise%5B%7B%7B2x+2,x%E2%89%A4-1%7D,%7Bdiv(3x,4),-1%5Bleq%5Dx%E2%89%A42%7D,%7Be%5E(x-2),x%5Bgeq%5D2%7D%7D%5D%20(Math%20Input%20Wolfram%20Alpha).jpg "Math input panel")
%20=%20Piecewise%5B%7B%7B3x%5E2,x%E2%89%A50%7D,%7B4x,x%E2%89%A40%7D%7D%5D%20(Math%20Input%20Wolfram%20Alpha).jpg "Math input panel")
+div(3,y)+div(1,z)=div(7,3),%20-div(2,x)+div(1,y)-div(1,z)=div(3,4),%20div(3,x)-div(1,y)+div(2,z)=5%7D%20(Math%20Input%20Wolfram%20Alpha).jpg "Math input panel")
