First of all use 2 to multiply the numbers in the bracket which will be 2x-42=25....then collect like terms which will be 2x=25+42 which will be 2x=67 then 67/2=33.5 or 33whole number 1/2.
Inertia is a tendency to do nothing or to remain unchanged.
It is a property of matter by which it continues in its existing state of rest or uniform motion in a straight line unless that state is changed by an external force.
