tolong jawab no 1 plisss

kel:
a) 2p + 2l
2(3x + 2) + 2(2x-3)
6x + 4 + 4x - 6
10x - 2

b) 10x -2 = 36
10x = 38
x = 3.8

p = 3 x 3.8 + 2
= 11.4 + 2
= 13.4cm

l = 2x - 3
= 7.6 - 3
= 4.6cm