Answer:
8y = -6
Step-by-step explanation:
Simply add the equations as you would numbers.
The 'x's cancel each other out. The 'y's add together as normal numbers.
9 + (-15) = -6
Hope that this helps!
To dea with absolute values you need to apply the definition of absloute value OR get rid of it by squaring both sides of the equality.
Let's try it by using the definition of the absolute value:

So, having that in mind, we must split the initial equation into two.

Then, we end up with two equations:

Both yield the solutions:

So your answer would be the second option
Answer:
61
Step-by-step explanation:
all angles of a triangle adds up to 180
180-77-42=61
Constant: 3x;linear: -6; quadratic: 4x2
Answer:I'm pretty sure it's A
Step-by-step explanation: