4x + 2x -1 =24 - 2x

1
a; 4x + 2x -1 =24 - 2x
b; 6(x - 1) + 3 (x - 1) = 12 - 4 (2x - 2)
c; 21x - 120 (x - 9) = 80x + 6
2
$$\begin{gathered} a) \frac{5x-3}{6}-\frac{7x-1}{4}=\frac{4x+2}{7}-5 \\ b) \frac{x+1}{3}+\frac{6x+3}{4}=\frac{5x+3}{6}+\frac{7+12x}{12} \end{gathered}$$