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9a + 54 = 40a - 8
54 + 8 = 40a - 9a
62 = 31a
a = 2
3/6 (3x - 6) = 4/6 (2x-3)
9x/6 - 1 = 8x/6 - 1/2
9x/6 - 8x/6 = 1 - 1/2
x/6 = 1/2
x = 3
(2b+11)/b = 15/2
4b + 22 = 15b
22 = 11b
b = 2
2.
2x - 8x ≥ 5 + 6
-6x ≥ 11
x ≥ - 11/6
1/2x > 15 - 5 = 10
x > 20
2/3p ≤ 8 -4 = 4
p ≤ 4 x 3 : 2
p ≤ 6
2y - 7 < 6
2y < 6 + 7
2y < 13
y < 13/2