From A+B=132 and B+C=130, what is A-C?

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Multiple Choice

From A+B=132 and B+C=130, what is A-C?

Explanation:
Subtract the second equation from the first. The B terms cancel, leaving A − C = 132 − 130 = 2. So the value of A minus C is 2. The other numbers don't fit because the difference between the two sums is fixed at 2, so only 2 satisfies the relation.

Subtract the second equation from the first. The B terms cancel, leaving A − C = 132 − 130 = 2. So the value of A minus C is 2. The other numbers don't fit because the difference between the two sums is fixed at 2, so only 2 satisfies the relation.

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