To solve this equation, we first simplify the left side:

(x+1) + 2(x+2) + 3(x+3)
= x + 1 + 2x + 4 + 3x + 9
= 6x + 14

Now we set this equal to 50:

6x + 14 = 50

Subtract 14 from both sides:

6x = 36

Divide by 6:

x = 6

Therefore, the solution to the equation is x = 6.