Make 2SM = RN.
2(3x - 4) = 9x - 20
Distribute 2 inside the parentheses.
6x - 8 = 9x - 20
Subtract 9x from both sides.
-3x - 8 = -20
Add 8 to both sides.
-3x = -12
Divide both sides by -3.
x = 4
NP = SM, so NP = 4.
A) 4
