Final answer:
By setting the expressions for QS (3v+2) and TV (7v-6) equal because ΔQRS and ΔTUV are congruent, we solve for v and find that both QS and TV equal 8 units in length.
Step-by-step explanation:
Since triangles ΔQRS and ΔTUV are congruent (ΔQRS≅ΔTUV), corresponding sides are equal in length. This means that QS is equal in length to TV. Therefore, the expressions for QS (3v+2) and TV (7v-6) are equal, and we can set them equal to each other to solve for v:
3v + 2 = 7v - 6
To find the value of v, we rearrange the equation:
4v = 8
Divide both sides by 4:
v = 2
Now we substitute v = 2 into the original expressions to find the lengths of QS and TV:
QS = 3(2) + 2 = 6 + 2 = 8
TV = 7(2) - 6 = 14 - 6 = 8
Hence, the length of QS and TV is 8 units each.