Answer:
Step-by-step explanation:
Given
Attached number lines
Required
Express as:
The two points on the number line represent x and c (in no particular) respectively.
Solving (a):
Let:
So:
Solve the expression in the absolute bracket
Remove absolute bracket
So: the expression is;
Solving (b):
Now
Answer: The answer is 2x + 7.
Explanation: First, we need to add the numbers:
9x + 3 – 7x + 4
9x + 7 - 7x
And finally, we combine like terms:
2x + 7