Well, for -6d to equal -13d, d would have to be 0 to satisfy this equation
You would isolate the variable for ex
2x+3=9
2x=9-3
2x=6
x=3
Answer:
31°
3
108°
Step-by-step explanation:
The measure of angle ADB is congruent to the measure of angle CBD, so it is equal to 31°.
4x = 12
divide by 4 on both sides and you are left with x=3
angle A is congruent to angle C, so it is equal to 108°.
Hope this helps!