Question

please answer my questions​

Answer 1

Answer:

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Answer 2

1. x + 7 = 9

x = 9 - 7 = 2

2. x/4 = 25

x = 25 × 4 = 100

3. 9y = -135

y = -135/9 = -15

4. 15 - x = 4

-x = 4 - 15

-x = -11

x = 11

5. 3( x - 3) = 15

3x - 9 = 15

3x = 15 + 9

x = 24/3 = 8

6. 7y + 3 = 9

7y = 9 + 3

y = 12/7