Answer:
PR = 22
Step-by-step explanation:
Because point Q ∈ PR (∈ means belongs to), we know that PQ + QR = PR due to the Parts Whole Postulate. Therefore, using substitution, we can write the following equation:
2 + 2x + 4 = 4x - 10
2x + 6 = 4x - 10
-2x = -16
x = 8 so PR = 4(8) - 10 = 22.
