12x<2=2x+6. Find x in this question.​

How can we find the measure of an exterior angle if we know the measurement of an interior angle

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

How is working backward similar to solving an equation?