Question

X + 3x/4 + 9x/16 + 27x/64 = 196

Answer 1

x + $\frac{3x}{4} + \frac{9x}{16} + \frac{27x}{64} = 169$
$64x + 48x + 36x + 27x = 10816$
$175x = 10816$
$x = \frac{10816}{175}$