Question

Please help me i'd really appreciate any help

Answer 1

Congruent means they are the same length.

Set both lines equal to each other and solve for x:

x + 5 = 2x -10

Subtract x from both sides:

5 = x -10

Add 10 to both sides:

x = 15

Now you have a value for x, replace x in the equation of the line and solve:

QR = x +5 = 15 +5 = 20