Question

I need the answer asap....

Answer 1

Answer:

$x=9$

Step-by-step explanation:

ABC is the sum of the angles CBD and ABD. So:

$\angle ABC=\angle CBD+\angle ABD$

Substitute them for their equations:

$(-7x+241)=(-4x+123)+(154-7x)$

Solve for x. Combine like terms on the right:

$-7x+241=-11x+277$

Add 11x to both sides:

$4x+241=277$

Subtract 241 from both sides:

$4x=36$

Divide both sides by 4:

$x=9$

The value of x is 9.

And we're done!