Simplify.

−y − 7x + 6y

The simplified expression is

1. Collect like terms.

(-y+6y)-7x

2. Simplify it.

5y-7x

The simplified expression is 5y-7x ^^

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950