If ABC = DEC,
B = 40° and E = 2x + 4
x = [?]
Enter

angle B = angle E
Thus ;
[tex]2x + 4 = 40[/tex]
Subtract sides -4
[tex]2x + 4 - 4 = 40 - 4[/tex]
[tex]2x = 36[/tex]
Divided sides by 2
[tex] \frac{2}{2}x = \frac{36}{2} \\ [/tex]
[tex]x = 18[/tex]
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Done...♥️♥️♥️♥️♥️