Use the properties of angle measures to find the measure of

Use the properties of angle measures to find the measure of each marked angle. Lines m and n are parallel. a = (3x + 10) degree b = (5x + 18) degree -7 degree, 186 degree 67 degree, 113 degree 71 degree, 109 degree 19 degree, 161 degree

Solution

Solution:

just need to add the two angles to get 180.

about a line, then............

=> (3x + 10) + (5x + 18) = 180
=> x = 19

So angle a = 67
angle b = 113

So answer is B 67 , 113