myamcclain692 myamcclain692

22-10-2020
Mathematics

contestada

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

If ABC DEC B 40 and E 2x 4 x Enter class=

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hnori22003 hnori22003

22-10-2020

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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