The correct answer is -15 because the absolute value is 15 but there is a negative outside the absolute value lines making it negative :)
It's the first one and the last one need any more help let me know okay
Answer:
10 Stupid. You're in college
Step-by-step explanation:
Bruh
When added, these two angles are supplementary, meaning that their sum is 180. This means that we can do the following to find x, and eventually DBC:
3x+67+4x+50=180
Simplifies to:
7x+117=180
Then by the Subtraction Prop. of Equality:
7x=63
Then divide by 7 on both sides to get that x=9.
We then substitute 9 into angle DBC.
4(9)+50
=36+50
DBC=86
:)
