How to get answer by Mimiwhatsup:
[tex]\mathrm{Switch\:sides}\\5\left(1+4x\right)-2x=-13\\\mathrm{Expand}\:5\left(1+4x\right):\quad 5+20x\\5+20x-2x=-13\\\mathrm{Add\:similar\:elements:}\:20x-2x=18x\\5+18x=-13\\\mathrm{Subtract\:}5\mathrm{\:from\:both\:sides}\\5+18x-5=-13-5\\Simplify\\18x=-18\\\mathrm{Divide\:both\:sides\:by\:}18\\\frac{18x}{18}=\frac{-18}{18}\\Answer: x=-1[/tex]
