11x - 3 + 4x greater than or equal to 142 1/2

x > or equal to 9.7

Step-by-step explanation:

Don't let the inequality intimidate you. Treat the > or equal sign like it is an equal sign.

Any thing you do on the right you must do on the left.

move 3 to other side

combine like terms

15x > or equal to 145.5

Divide both sides by 15

x > or equal to 9.7