Answer :

I know how to solve it but the value of 'a' is required for solution.

Answer:

[tex]b=2a +\frac{7}{2}[/tex]

Step-by-step explanation:

[tex]4a=2b-7[/tex] solve for b

To solve for b, we need to get b alone

We need to remove -7 to isolate 2b

[tex]4a+7=2b-7+7[/tex]

[tex]4a+7= 2b[/tex]

To get 'b' alone we divide both sides by 2

[tex]\frac{4a}{2} +\frac{7}{2} =b[/tex]

[tex]2a +\frac{7}{2} =b[/tex]

[tex]b=2a +\frac{7}{2}[/tex]

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