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40= 2(2x + 3 + 3x - 8)
40= 4x + 6 + 6x -16
40= 10x - 10
50=10x
x = 5
p = 2x+3 = 13
l = 3x-8 = 7
[cmiiw]
40=2(2x+3+3x-8)
40=2(5x-5)
40=10x-10
-10x=-10-40
-10x=-50
x=-50/-10
x=5