Final Answer: 
Steps/Reasons/Explanation:
It is common addition and subtraction because they all have w after the number. This means they are the same variable. A plus minus (+-) would be a minus (-).
Question: Simplify the expression:
.
<u>Step 1</u>: Simplify.

<u>Step 2</u>: Simplify.

~I hope I helped you :)~
Mistake in line one
He forgot to factor the 2 out of -8x
Answer:
No solution
Step-by-step explanation:
-2(4-3x)-6x = 10
-8 + 6x - 6x = 10
-8 = 10
there is no solution because -8 cannot = 10
Answer:
Width = x² + 5x - 4
Step-by-step explanation:
By the definition of an area model,
Area = Width × greatest common factor
Since, Area = 4x² + 20x - 16
And greatest common factor = 4
4x² + 20x - 16 = 4(Width)
By dividing both the sides of the equation by 4,

x² + 5x - 4 = Width
Therefore, width = (x² + 5x - 4) will be he answer.