Use the substitution method
{"Image DocumentName": "Use the substitution method", "Image ImageDescription": "EXAMPLE 1. Use the substitution method. Solve the linear system: y = 3x + 2. Equation 1. x + 2y = 11. Equation 2. SOLUTION. STEP 1. Solve for y. Equation 1 is already solved for y.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}