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Written algebraically, the equation is (2/A)=4.
The first step is to move the variable A from the denominator. To do this, multiply both sides of the equation by A:
A*(2/A)=4*A
The A in the denominator on the left is canceled out and we are left with:
2=4*A
To solve for A divide both sides of the equation by 4:
2/4=A
Two over four simplifies to one half, which equals A:
1/2=A
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