The solution of equation 3 (5x-6) = 3-20x is also the solution of equation A-10 / 3 x = 2A + 10x

The solution of equation 3 (5x-6) = 3-20x is also the solution of equation A-10 / 3 x = 2A + 10x

Solve the first equation, get x = three fifths, take x = three fifths into equation a - ten thirds, x = 2A + 10x, get an equation about a, and solve a