Answer:X=6
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
8x−2x−16=20
8x+−2x+−16=20
(8x+−2x)+(−16)=20(Combine Like Terms)
6x+−16=20
6x−16=20
Step 2: Add 16 to both sides.
6x−16+16=20+16
6x=36
Step 3: Divide both sides by 6.
6x
6
=
36
6
x=6
Answer:
6.9
7.-5
8.-10
Step-by-step explanation:
Answer:
Simplify
The answer is:
Step-by-step explanation:
We have the expressions:
Now, we need simplify:
We need to replace each term by the expressions:
We need to remember the rule of signs:
With this in mind we solve the parentheses:
let's group common terms
We must add and subtract common terms:
The answer is: