Six more than twice a number is less than negative twelve. Solve the inequality for the unknown number

Question

Six more than twice a number is less than negative twelve. Solve the inequality for the unknown number

(Simplify your answer. Type an inequality using x as the​ variable.)

Answer 1

call the unknown number X, then write: 6+ 2X < -12 and re-arrange

2X < -18 --> X < -9.

Answer 2

Six more than twice a number is less than negative twelve. Solve the inequality for the unknown number

Write the expression as the problem says it:

6 + 2x < -12

Now, use the inequality rules to solve for the unknown number x:

2x < -18 [ subtract 6 from both sides and retain inequality ]

x < -9 [ divide both sides by 2 and retain inequality ]

Answer 3

2x + 6 < - 12; 2x < - 18, x < - 9 or x ∈ ( - ∞, - 9)