Is this equation true?
a-b=a+(-b)

yes,it is true

Step-by-step explanation:

a-b=a+(-b)

a-b=a-b because positive and negative form negative (+,-)= -

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice