Solve for D
D\neq 0
c=1\text{ and }B\neq 0
Solve for B
B\neq 0
c=1\text{ and }D\neq 0
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Dc=D
Variable D cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by BD, the least common multiple of B,DB.
Dc-D=0
Subtract D from both sides.
\left(c-1\right)D=0
Combine all terms containing D.
D=0
Divide 0 by -1+c.
D\in \emptyset
Variable D cannot be equal to 0.
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