3 years ago

Evaluate: a = -3, b = 1, and c= -4 -21-c

Mathematics

2 answers:

pychu [463]3 years ago

7 0

Answer:

-17

Step-by-step explanation:

-21-c

Let c = -4

-21 - -4

Subtracting a negative is like adding

-21 +4

-17

Kobotan [32]3 years ago

4 0

Answer:

-17

Step-by-step explanation:

- 21 - c

Put c as -4.

- 21 - (-4)

The negative signs cancel.

- 21 + 4

Add both the terms.

= -17

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