Answer: It already tells you what DE= 60
Step-by-step explanation:
Since F is the midpoint of DE that means DF=FE
So create equation [tex]2x+6+2x+6=4x+12[/tex]
When DF and FE is added your answer should equal DE
So you write the equation [tex]4x+12=2x+36[/tex] to find x and once x is found substitute your answer for x
[tex]4x+12(-12)=2x+36(-12)[/tex] subtract 12 on both sides 36-12= 24
[tex]4x=2x+24[/tex] subtract 2x on both sides 4x-2x=2x
[tex]2x=24[/tex] divide 2 into both sides 24/2=12 x=12
[tex]4(12)+12=2(12)+36[/tex]
4x12=48+12=60 2x12=24+36=60
