Answer: 
Step-by-step explanation:
Get rid of parentheses: 
Add all the numbers together, and all the variables: 
Move all terms containing x to the left, all other terms to the right:
Step-by-step explanation:
the intersection of the interval: (-∞, 7) and [-5, +∞)
is [-5, 7)
and the union of the interval: (-∞, 7) and [-5, +∞)
is (-oo, +oo)
Answer:
A closed dot represents a lreater than or equal to or less than or equal to, which can be distinguished in an inequaity's equation by an underline.
Step-by-step explanation:
The 2nd one is the answer because it shows Distributive Property which is a(b+c) or <span>(b+c)a.</span>
-2(6-x)= 3x, the solution is find the value of x, you must apply distributive property, tho the first term, -12+2x= 3x⇒ 3x-2x= -12⇒ x = -12, the answer correct is option D
