Answer:
TQS = 43
Explanation:
both angles will equal to 180(they make a strait angle) so the equation will look like this
6x + 20 + 2x + 4 = 180
add your sums together
8x + 24 = 180
minus 24 from both sides
8x = 156
divide 8 from both sides
x = 19.5
put answer into the original equation for TQS
TQS = 2(19.5) + 4
TQS = 39 + 4
TQS = 43