help me

let ? = x 

work out the numbers in the brackets 

801+x=676+(x+186)

factorise the right hand side

801+x=676x+125736

-801 from each side

x=676x+124935

-676x from each side 

-675x=124935

Divide each side by -675

-675 cancels out

x=124935/-675 simplify fraction

x=\(-\frac{8329}{45}\)

676+125 + ?  = 676 + ? + 186      Subtract 676 from both sides

125 + ?  =   186 + ?                       ?   cannot be the same number on both sides of the equation

                                                            and there are infinite answers if ? is diferent on both sides.