There is a missing variable after (2x+3) (system glitch happens all the time) can't figure it out to solve the question

Suppose an object moves along a linear path according to the velocity function v(t) = (2x+ 3) , where v(t) is in meters per second. If the object's position at t = 1 is s = 3, what is the function in terms of t that represents the position at any time t? 0 3 - 1 V ( 2u + 3) du of V ( 2u + 3 ) du 0 3 + / V(2u + 3) du of V( 2 t + 3) dt 1 2 3 4 5 6 7 8 9 10 Next