Answer:
V = -9
Step-by-step explanation:
-15V - 40 = 23 - 8V
The objective is to get V alone. To do this, first subtract -15V from both sides. Since -15V is a negative, subtracting it will be adding a positive.
-40 = 23 + 7V
Now that there is only one term with the variable V, subtract 23 from both sides.
-63 = 7V
Finally, divide both sides by 7 to get V completely isolated.
-9 = V.
The final answer is V = -9.
(B)
Step-by-step explanation:
Rewrite the equations into their standard forms. The first one can be rewritten as

and the 2nd can be rewritten as

Solving this system either by substitution or elimination, we get

If you add x + y, you'll get a negative number.
Answer:
8, 5, and 2
Step-by-step explanation:
8+5+2= 15
8 x 5 x 2 = 80
It should be a 80 degrees.