<h2><u>Question</u><u>:</u><u>-</u></h2>
solve for x: 3(x + 1) = 2 (x -1)
<h2><u>Solution</u><u>:</u><u>-</u></h2>
- 3(x + 1) = 2 (x -1)
- 3x + 3 = 2x - 2
- 3x -2x = -2 -3
- x = -5
<h2><u>Answer</u><u>:</u><u>-</u></h2>
[Hence, the value of x is -5.]
Answer
The sales tax is determined by computing a percent of the purchase price. To find the sales tax multiply the purchase price by the sales tax rate. Remember to convert the sales tax rate from a percent to a decimal number. Once the sales tax is calculated, it is added to the purchase price.
If the width is w then the length = 2w + 40, so the area
= w(2w + 40)
= 2w^2 + 40 w
