How many solutions does 4x + 3 = 6 + 4x have ?

Can someone me and do the problem plz so i can understand it more better

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2