C I’m pretty sure that’s what is it
All you've got to do is some simple algebra! When you solve for a variable, you are trying to get it alone on one side of the equation. So, we want something that looks like y = ...
First, add 21x to both sides of the equation. This will cancel out the -21x on the left side.
-21x + 3y = 6
-21x + 3y + 21x = 6 + 21x
3y = 21x + 6
Now, to get y alone, divide both sides of the equation by 3. This will cancel out the coefficient of 3 on the left side.
3y = 21x + 6
(3y)/3 = (21x + 6)/3
y = 7x + 2
There's the answer. Hope that helps! :)
Answer:
Cost = [(18×12) + (13×13)] × 3.50
Step-by-step explanation:
The total cost will depend on the area of the living room and the area of the bedroom.
For the living room,
Area 1 = l×w
Area 1 = 18 × 12
For the bedroom,
Area 2 =13 × 13
Total area = (18×12) + (13×13)
The total cost is the area times the cost per square foot.
Cost = [(18×12) + (13×13)] × 3.50
George can use this expression to find the cost of the carpeting.
Answer:
Step-by-step explanation:
- <em>Assumed it is asking to find the value of x</em>
Given
- F is midpoint of DF
- DE = DF/2
- DE = 5x + 4
- DF = 78
Solution
- 5x + 4 = 78/2
- 5x + 4 = 39
- 5x = 35
- x = 7
