Solve for F
F=\frac{9D}{2}-G
Solve for D
D=\frac{2\left(F+G\right)}{9}
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D=\frac{2}{9}F+\frac{2}{9}G
Use the distributive property to multiply \frac{2}{9} by F+G.
\frac{2}{9}F+\frac{2}{9}G=D
Swap sides so that all variable terms are on the left hand side.
\frac{2}{9}F=D-\frac{2}{9}G
Subtract \frac{2}{9}G from both sides.
\frac{2}{9}F=-\frac{2G}{9}+D
The equation is in standard form.
\frac{\frac{2}{9}F}{\frac{2}{9}}=\frac{-\frac{2G}{9}+D}{\frac{2}{9}}
Divide both sides of the equation by \frac{2}{9}, which is the same as multiplying both sides by the reciprocal of the fraction.
F=\frac{-\frac{2G}{9}+D}{\frac{2}{9}}
Dividing by \frac{2}{9} undoes the multiplication by \frac{2}{9}.
F=\frac{9D}{2}-G
Divide D-\frac{2G}{9} by \frac{2}{9} by multiplying D-\frac{2G}{9} by the reciprocal of \frac{2}{9}.
D=\frac{2}{9}F+\frac{2}{9}G
Use the distributive property to multiply \frac{2}{9} by F+G.
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