Answer:
SU = 5
Explanation:
Since we assume Point T is the midpoint on the line segment SU, we simply have to add each expression, set it equal to the entire segment, and substitute.
1) Set 3x + 3x - 1 equal to 4x + 1. (3x + 3x - 1 = 4x + 1)
2) Simplify 3x + 3x - 1 (add both of the 3x's), you should recieve 6x - 1. (6x - 1 = 4x + 1)
3) Subtract the 4x from both sides (canceling out the original 4x, and making 6x into 2x). (2x - 1 = 1)
4) Add 1 to both sides (inverse of negative 1, cancels out the -1). This the equation to be (2x = 2)
5) Divide both sides, 2/2 = 1.
6) Substitute the new 1 into the variable x in the original equation (4x + 1), so now it should be 4(1) + 1.
7) Simplify this equation, and you should receive 5.
Therefore, SU = 5.