Answer:
$14.18
Step-by-step explanation:
just multiply 12 with 100 for percentage and divide it by 85 because there was 15 percent off and you'll get the answer
x=23
Simplifying
(3x + -50) + (7x)
Reorder the terms:
(-50 + 3x) + (7x)
Remove parenthesis around (-50 + 3x)
-50 + 3x + (7x) =
Combine like terms: 3x + (7x)
-50 + 10x
Solving
-50 + 10x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '50' to each side of the equation.
-50 + 50 + 10x = 180 + 50
Combine like terms: -50 + 50 = 0
0 + 10x = 180 + 50
10x = 180 + 50
Combine like terms: 180 + 50 = 230
10x = 230
Divide each side by '10'.
Simplifying
x = 23
Step-by-step explanation:
- <em>Exterior angle is same as sum of remote interior angles.</em>
- Solving for x in each case below.
<h3>
#7</h3>
- 5x + 10 + 58 = 11x + 2
- 5x + 68 = 11x + 2
- 11x - 5x = 68 - 2
- 6x = 66
- x = 11
<h3>#8</h3>
- 10x - 10 + 30 = 12x - 4
- 10x + 20 = 12x - 4
- 12x - 10x = 20 + 4
- 2x = 24
- x = 12
<h3>#9</h3>
- 46 - 1 + 8x = 18x + 5
- 8x + 45 = 18x + 5
- 18x - 8x = 45 - 5
- 10x = 40
- x = 4
<h3>#10</h3>
- 15x + 5 + 22x + 4 = 120
- 37x + 9 = 120
- 37x = 111
- x = 3
