Answer:
add 7
Step-by-step explanation:
The equation given is a multi-step equation:
-9 + x = 5x - 7
In order to isolate the variable and solve, you need to use inverse (opposite) operations to get the variable on one side and the numbers on the other. As given, the first step is to 'subtract x' from both sides:
-9 + x = 5x - 7
<u> - x - x </u>
-9 = 4x - 7
Next step would be to 'add 7' on both sides:
-9 = 4x - 7
<u> +7 +7</u>
-2 = 4x
Last step would be to 'divide 4' on both sides:
<u> -2 = 4x</u>
4 4
-1/2 = x
Answer:
15 inches
Step-by-step explanation:
The formula for the area of the area of a triangle is bxh/2.
The base is 6 inches, and the height is 5 inches. 6x5=30. 30/2=15.
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Answer:
-22
Step-by-step explanation:
Given:
The area of a rectangle = 14 square units.
The side lengths are a and b.
To find:
The value of b.
Solution:
We know that, the area of a rectangle is:
The area of the given rectangle is:
On further simplification, we get
Divide both sides by 7.
Therefore, the value of b is 6 units.
