ST=x+3 and TU=4x-6 what is the value of ST and SU I know ST=6 and SU=12, but I'm not sure how to do the problem, can someone explain? (S, T, and U are all on the same line)

Answer:ST= 6 unit and SU = 12 unitStep-by-step explanation:Here, S, T, and U are all on the same line,Also, T is between S and U,Such that ST = TUHere, ST = x+3 and TU = 4x-6,⇒ x + 3 = 4x - 6Subtracting 3 on both sides,⇒ x = 4x - 9Subtracting 4x on both sides,⇒ -3x = -9Divide both sides by -3,⇒ x = 3Hence, ST = 3 + 3 = 6,And, SU = ST + TU = ST + ST = 2 ST = 2(6) = 12