1. Solve the equation for the variable: $21 + 6f = 7f + 14$. $f = $ ___
2. Solve the equation for the variable: $\frac{7}{3}y + 7 = \frac{2}{3}y - 8$. $y = $ ___.
3. Solve the equation for the variable: $2.8w - 1.7 = 1.5w + 2.2$. $w = $ ___.
4. Solve the equation for the variable: $4x - 17 = 3x + 2$. $x = $ ___
5. Solve the equation for the variable: $9c + 7 = -2c - 37$. $c = $ ___
6. Solve the equation for the variable: $8q - 5 = 5q - 20$. $q = $ ___
7. Solve the equation for the variable: $2z - 4 = 23 - z$. $z = $ ___
8. Solve the equation for the variable: $2.7w - 80 = 1.2w + 10$. $w = $ ___.
9. Solve the equation for the variable: $6.6x - 18.9 = 3.4x + 54.7$. $x = $ ___.
10. Solve the equation for the variable: $\frac{5}{4}c - 3 = \frac{1}{4}c - 16$. $c = $ ___