Question

Do question (i),(iv),(vii).
Write it symbolically.
Step by step explanation​

Answer 1

$1) \: 3 + a \: = \: 3 + a$

$4) \: (- \frac {1}{2} ) + ( - a) \\ \\ = - \frac{1}{2} - a$

$7) \: 11 \times p \\ \\ = 11p$

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