A=2(l+w) solve for w

1 answer:

8 0

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.

$A=2(l+w)$

$\dfrac{a}{2}=l+w

$ $Divide \ both \ sides \ by \ 2$

$\dfrac{a}{2}-l=w

 
$ $Subtract \ l \ from \ both \ sides$

$w= \dfrac{a}{2}-l$

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