Respuesta :

Answer:

a = 2A/h - b

Step-by-step explanation:

For this question the answer is a = 2A/h - b

We have to isolate the variable by dividing each side  by factors that don't contain the variable.

We'll have our final answer as : a = 2A/h - b

Answer: [tex]a=\dfrac{2A}{h}-b[/tex]

Step-by-step explanation:

The given formula : [tex]A=\dfrac{a+b}{2}\cdot h[/tex]

Then , to solve the formula for a , first divide both sides by h and multiply both sides by 2 , we get

[tex]\dfrac{2A}{h}=a+b[/tex]

Now, subtract b on both the sides , we get

[tex]\dfrac{2A}{h}-b=a[/tex]

Or we can write it as [tex]a=\dfrac{2A}{h}-b[/tex]

Hence, the formula for a is given by :-[tex]a=\dfrac{2A}{h}-b[/tex]