Simplify the expression and find the value when $p = - 1 a n d q = - 2$
$3 p + 4 + 2 q + 1$

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Solution

Step 1 : Simplify the given expression
Given expression is $3 p + 4 + 2 q + 1$
On simplifying the expression
$3 p + 4 + 2 q + 1$
$= 3 p + 4 + 2 q + 1 = 3 p + 2 q + (4 + 1) (g r o u p i n g t h e l i k e t e r m s) = 3 p + 2 q + 5$
Step 2- Substitute the values of $p$ and $q$ in simplified equation
putting the value $p = - 1, q = - 2 i n 3 p + 2 q + 5$
we get,
$= 3 (- 1) + 2 (- 2) + 5 = 3 \times - 1 + 2 \times (- 2) + 5 = - 3 - 4 + 5 = - 7 + 5 = - 2$
Hence, the required solution is $- 2$

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