Solve for xxx in terms of aaa and bbb: ax+b=2b−axax + b = 2b - axax+b=2b−ax.
x=fracb2ax = \\frac{b}{2a}x=fracb2a
x=frac2bax = \\frac{2b}{a}x=frac2ba
x=fracbax = \\frac{b}{a}x=fracba
x=fracabx = \\frac{a}{b}x=fracab