9. Simplify these expressions and find their values if
x = 3, a = -1 and b = -2.
(i) 3x - 5- X + 9 (ii) 10 - 3 - 4 - 5x
(iii) 3a + 7a +5 -1 - (iv) 2x - 36 - 4-5+ a
(v) a-x + bºx + 5 DO
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