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USMZABC = 40'and BỎ is the anglebisector of ZABC3y+6B.3x-134-2xD5y-18MZABD =[ ? 1°Enter

USMZABC 40and BỎ Is The Anglebisector Of ZABC3y6B3x1342xD5y18MZABD 1Enter class=

Sagot :

We want to calculate the value of

[tex]3x-1[/tex]

However, x is unknown. For BD is "angle bisector"

[tex]3x-1=34-2x[/tex]

Let us solve that equation for x:

[tex]3x+2x=34+1[/tex]

(-2x was sent to the left-hand side, and -1 was sent to the right-hand side)

[tex]5x=35[/tex][tex]x=7[/tex]

Then,

[tex]3x-1=3(7)-1=21-1=20[/tex]

Thus,

[tex]m\measuredangle ABD=20[/tex]

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