7x+14-2x=-x+12-x-19
collect like terms
7x-2x+X+X+19=12-14
7x+19+2
7x=-21
x-21/7
X=-3
The state government said it was the president of president
So you have
8 digits (number available) to form
3 digit numbers (number selected).
Using the formula

where a is the number of available digits, P is the permutation function and c is the number of digits to be selected.
The number of three digit numbers that can be formed =

=
336 <span>
O R</span>By using the formula

where a is the number of available digits and c is the number of digits to be selected.<span>
</span>⇒

<span>
</span>⇒

<span>
</span>⇒ Permutation =
336<span>
</span>
I believe it’s A! Hope this helps I’m very sorry if I’m wrong