So we plug in our given information to follow that format, solve for x, and plug in our value for X to find the measurement of the line segment the question is asking for.
(8x + 8) + (4x + 2) = 22
Combine like terms: 12x + 10 = 22
Subtract 10 from both sides to isolate the variable and its coefficient: 12x = 22 - 10 12x = 12
Divide both sides by 12 to isolate the variable X: x = 12/12 x = 1
