X2 - 10x = 7
You move the constant to the right which looks like: - 10x = 7 - 2
- 10x = 5
Then you divide both side by -10. The answer is:
X = -1/2 OR x = -0.5
Answer:

Step-by-step explanation:
Given

Required
Simplify
We have:

Open brackets

Collect like terms


Hope I wrote this clearly
3 to the 4th power = 3x3x3x3 which is 81 :)