When 8 is added to the number that is produced by doubling the number x, the result is equal to 8 times the number that is 5 less than x. what is x equal to?

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.