(7)3 ÷  (49)2  × 343 = 7(? − 2)

First, let's simplify the left side of the equation:

(7)³ ÷ (49)² × 343

This simplifies to:

(777) ÷ (7777) × (77*7)

Which simplifies further to:

7 ÷ 7 = 1

So, the left side of the equation simplifies to 1.

Now, let's look at the right side of the equation:

7(? - 2)

We know that the left side of the equation is 1, so we can set the right side of the equation equal to 1 and solve for ?:

1 = 7(? - 2)

To solve for ?, we first divide both sides of the equation by 7:

1/7 = ? - 2

Then, we add 2 to both sides of the equation to isolate ?:

? = 1/7 + 2

? = 2 + 1/7

? = 2 1/7

So, the solution to the equation is ? = 2 1/7.