Question

Se the figure to the right to find the value of PT. T is the midpoint of PQ

pt=3x+7 and tq=5x-9

Answer 1

so if PT=TQ and TQ=7x-9

PT=5x+3=TQ=7x-9

5x+3=7x-9

minus 5x both sides

3=2x-9

add 9 both sides

12=2x

divide 2

6=x

PT=5x+3

PT=5(6)+3

PT=30+3

PT=33

PT=QT=33

x=6

Explanation: