What is m∠ABC? A. m∠ABC = 60°

B. m∠ABC = 67°

C. m∠ABC = 120°

D. m∠ABC = 127°

Brainlist for the correct answer

127 degrees

Step-by-step explanation:

When you add up all three angles of a triangle, the sum will always be 180 degrees. Just add up the two known angles and that will equal Angle ABC because a straight line also equals 180 degrees

X=

Step-by-step explanation:

Ok...

Get ready to see Alot more numbers

1. Rearrange terms.

12x-15=6-3x

12x-15=-3x+6

2. Add 15 to both sides.

12−15=−3+6

12−15+15=−3+6+15

3. Simplify

If you add the numbers you will get:

12x=-3x+21

4. Add 3x to both sides of the equation.

12x=-3x+21

12x+3x=-3x+21+3x

5. Simplify

If you combine the like terms you will get,

15x=21

6. Divide both sides of the equation by the same term.

15x=21

=

7. Simplify

If you cancel terms that are in both of the numerator and denominator, then divide the numbers you will get:

x=

I hope this helps     :)