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3 years ago

(-5)+(+7)-(-4) + (+12)A 8B 10C 18d 20

Chemistry

1 answer:

Vladimir79 [104]3 years ago

5 0

Answer:

C-18

Explanation:

Step one follow order of operations

Add and subtract from left to right(-5)+(7)=2-(-4)+(12)

STEP 2

Apply negative Rule -(-4)=+4=2+4+(12)

then add 2+4+12=18

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Read 2 more answers

(-5)+(+7)-(-4) + (+12)A 8B 10C 18d 20​

(-5)+(+7)-(-4) + (+12)A 8B 10C 18d 20