Question

B-3+3b=28what does b equal?

Answer 1

Solving an equation means finding a value of a variable that make the equation true. This value is called the solution of the equation. A mathematical equation is just like a balanced equation. Both sides of the equation should be equal at all times. Whatever we do to one side, has to be done on the opposite side. 

$B-3+3b=28$ 

$4b-3=28$ 

$4b=28+3$    $Add \ 3 \ to \ both \ sides$ 

$4b=31$ 

$\dfrac{4b}{4} / \dfrac{31}{4}$   $Divide \ both \ sides \ by \ 4$ 

$b= \dfrac{31}{4}$ 

$Decimal \ Form: 7.75$