For the first problem, the answer is B. For the second problem, the answer is A.
Please find the attached photograph for your answer
Answer: x=8
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3x−x−1=15
3x+−x+−1=15
(3x+−x)+(−1)=15(Combine Like Terms)
2x+−1=15
2x−1=15
Step 2: Add 1 to both sides.
2x−1+1=15+1
2x=16
Step 3: Divide both sides by 2.
2x
/2
=
16
/2
x=8
The answer would be A.
$198.45 x 5 days = $992.25
$992.25 + $65 delivery charge = $1057.25