Question

Someone help me pleaseee

Answer 1

x=8

DE=44

EF=56

DF=100

Explanation:

DE=EF

7x-12=5x+4

+12. +12

7x=5x+16

-5x. -5x

2x=16

/2 /2

x=8

----------------------

DE

7x-12

7(8)-12

56-12

44

----------------------

EF

5x+16

5(8)+16

40+16

56

----------------------

DF

DE+EF=DF

44+56=

100