If 9x+2 = 240 + 9x, then x =
9x + 2 = 240 + 9x
9x × 92 = 240 + 9x
Let 9x = y
81y = 240 + y
80y = 240
y =
9x = 3
32x = 3
2x = 1
x = = 0.5