Question

3+(-8)+21 = 16
how and
give me the detail solution​

Answer 1

Answer:

See below.

Step-by-step explanation:

NOTE:--

• (-)*(-) = (+) sign.

• (-)*(+) = (-) sign.

• (+)*(-) = (-) sign.

=>3+(-8)+21 = 3-8+21

=> 3-8+21 = -8+3+21

=>-8+24 = 24-8 = 16.

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