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Question
If 
= 2x + 3, 
= `3/2x + 7` and 
= x – 3 then find the value of:
`1/2`
+ 
– 3
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Solution
Given, = 2x + 3, = `3/2x + 7` and = x – 3
`1/2` + – 3 = `1/2(3/2 xx 2 + 7) + (8 - 3) - 3(2 xx 0 + 3)`
= `1/2(10) + 5 - 3(3)`
= 5 + 5 – 9
= 1
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