Answer:

Step-by-step explanation:
So just divide the areas by the length:

And that is your width.
Remember, that 10/10 is 1.
Therefore, 20/10 is 2.
To add a .5 or a half, since 5 is half of 10, add 5/10ths.
You end up with 2.5=25/10
So, 24/10 is less than 2.5.
4/7 = 12/21
12/21 = x + 3/21
9/21 = x
Hope this helped!!
Answer:
a= 13+3b
Step-by-step explanation:
Simplifying
a + -7 = 3(b + 2)
Reorder the terms:
-7 + a = 3(b + 2)
Reorder the terms:
-7 + a = 3(2 + b)
-7 + a = (2 * 3 + b * 3)
-7 + a = (6 + 3b)
Solving
-7 + a = 6 + 3b
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '7' to each side of the equation.
-7 + 7 + a = 6 + 7 + 3b
Combine like terms: -7 + 7 = 0
0 + a = 6 + 7 + 3b
a = 6 + 7 + 3b
Combine like terms: 6 + 7 = 13
a = 13 + 3b
Simplifying
a = 13 + 3b