Question

Can someone please help me find the DBE=

Answer 1

Answer:

∠DBE = 105°

Step-by-step explanation:

Angles on one side of a straight line always add to 180°.

Therefore we have the equation:

$35+(3x-15)+x=180$

$35+3x-15+x=180$             combine like terms

$(35-15)+(3x+x)=180$

$20+4x=180$           subtract 20 from both sides

$4x=160$          divide both sides by 4

$x=40$

∠DBE = 3x - 15. Substitute:

$\angle DBE=\bigg(3(40)-15\bigg)^o=\bigg(120-15\bigg)^o=105^o$