7 - 9x - (x + 12) less than or equal to 25?

x ≥-3

Step-by-step explanation:

7 - 9x - (x + 12) less than or equal to 25

7 - 9x - (x + 12) ≤ 25

Distribute the minus sign

7 - 9x - x - 12 ≤ 25

Combine like terms

- 10x - 5 ≤ 25

Add 5 to each side

- 10x - 5+5 ≤ 25+5

- 10x ≤ 30

Divide by - 10. Remember that this flips the inequality

- 10x/-10 ≥30/-10

x ≥-3