Subtract 8d from both sides
21 = 12d + 5 - 8d
Simplify 12d + 5 - 8d to 4d + 5
21 = 4d + 5
Subtract 5 from both sides
21 - 5 = 4d
Simplify 21 - 5 to 16
16 = 4d
Divide both side by 4
16/4 = d
Simplify 16/4 to 4
4 = d
Switch sides
d = 4
<u>Check answer</u>
8d + 21 =12d + 5
Let d = 4
8 × 4 + 21 = 12 × 4 + 5
Simplify 8 × 4 to 32
32 + 21 = 12 × 4 + 5
Simplify 12 × 4 to 48
32 + 21 = 48 + 5
Simplify 32 + 21 to 53
53 = 48 + 5
Simplify 48 + 5 to 53
53 = 53
Answer:
See Explanation
Step-by-step explanation:
<em>The question is incomplete because the area of the parallelogram is missing. However, the following will guide you in answering the question</em>
Given
Required
Determine the Height
Area of a Parallelogram is:
Make Height the subject
Substitute 16 for Base
This implies that you divide the value of area by 16 to get the height of the parallelogram.
Take for instance;
The height would be
Or
The height would be
Answer:
100
Step-by-step explanation:
A way of undoing any operation, is using the inverse of the operation. So if you want to ‘undo’ addition you subtract, and if you want to ‘undo’ multiplication you divide.
Hope this helps!!
6n-8<5n decreased means subtract
n-8<0
n<8