Question 632223
Try a simpler approach:
{{{27x^3 = (x+5)^3}}} Rewrite as:
{{{(3x)^3 = (x+5)^3}}} Take the cube root of both sides.
{{{3x = x+5}}} Subtract x from both sides.
{{{2x = 5}}} Finally, divide both sides by 2.
{{{x = 2.5}}}