Question

How can i find this answer ?

Answer 1

19-2x=3x-16

19+16=3x+2x

5x=35

Therefore, x=7.

19-2x=3x-16

19+16=3x+2x

5x=35

Therefore, x=7.

As angle /_ABC is 19-2x,

angle /_ABC is 19-2(7)=5.

Answer 2

$19-2x=3x-16\\ 5x=35\\ x=7$

$\angle ABC=19-2\cdot7=19-14=5^{\circ}$