solve for x in terms of a and b 4(ax-3)-3bx=25+3ax

4(ax-3)-3bx=25+3ax

4ax - 12 - 3bx = 25 + 3ax
4ax - 3ax - 3bx = 25 + 12
ax - 3bx = 37
(a-3b)x = 37
x = 37/(a-3b)