Explanation:
2 a + 5 < 9
=2a + 5-5 <9-5
=2a <4
=2a 4
__ < __
2 2
= a<2
Answer:
a= 1
2*1+5<9
7<9
if a =2
4+5<9
9=9
thus not true ......thus the answer is 1
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