Solve 7+3x-12x=3x+1 What does X equal?? plz help!

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

What is 1/3x5 on anuber line what does it look like on a number line