The equation:
2x + 4 = -8 + 5x
-3x
Step 1 and 2:
Add or Subtract
(use the inverse
operation)
Step 3:
Multiply or
Divide
(use the inverse
operation)
Final

the infinity sign

step-by-step explanation:

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