Respuesta :

Answer:

D. a = 3 1/2

Step-by-step explanation:

Plug in values

10 = 2a +3

Subtract 3 from both sides

7 = 2a

Divide both sides by 2

3 1/2 = a

Answer: [tex]3\frac{1}{2}[/tex]

Step-by-step explanation:

Here the given expression,

2a + b = p

By putting p = 10 and b = 3 in the above expression,

We get,

[tex]2a + 3 = 10[/tex]

[tex]\implies 2a = 10 - 3[/tex]

[tex]\implies 2a = 7[/tex]

[tex]\implies a = \frac{7}{2} = 3\frac{1}{2}[/tex]

Hence, Option C is correct.