Shau-uen solved the equation 18.5 w + 6.5 w minus 2.8 w = 149.1. Her work is shown below.Step 118.5 w + 6.5 w minus 2.8 w = 149.10Step 225 w minus 2.8 w = 149.1Step 3 Negative 2.8 w = 5.964Step 4w = negative 2.13In which step did Shau-uen make her first error? PLZ HELP FAST