Put the given equation into slope-intercept form. -4x + 3y = -6 then name the slope and y-intercept and explain the graph. (example, say the graph starts at 4 on the y-axis, then uses a slope of 1 up and 2 right to get another point on the graph and connect to the y-intercept)

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?