Question

9х-9=90 _________________

Answer 1

9х-9=90

9х=90+9

9х=99

Х = 99 : 9

Х = 11

_______________

Answer 2

9х-9=90

9х=90+9

9х=99

х=99/9

х=11

Answer 3

To solve the equation 9x - 9 = 90, we'll need to isolate the variable x on one side of the equation. Here's the step-by-step solution:

1. Start with the equation: 9x - 9 = 90.
2. Add 9 to both sides of the equation to eliminate the -9 on the left side: 9x - 9 + 9 = 90 + 9. Simplifying, we get: 9x = 99.
3. Divide both sides of the equation by 9 to isolate x: (9x)/9 = 99/9. Simplifying, we get: x = 11.

Therefore, the solution to the equation 9x - 9 = 90 is x = 11.