please help with these

Solve each literal equation
[tex] g = \frac{b}{ca} \\ gca = b \\ a = \frac{b}{gc} [/tex]
[tex]u = xky \\ \frac{u}{ky} = x \\ x = \frac{u}{yk} [/tex]
[tex]g = y + \frac{c}{x} \\( g - y )= \frac{c}{x} \\ x = \frac{c}{(g - y)} [/tex]
[tex]g + ca = ba \\ g = ba - ca \\ g = a(b - c) \\ \frac{g}{(b - c)} = a \\ a = \frac{g}{b - c} [/tex]