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Paraphin [41]
4 years ago
5

To solve the equation y – 4 = 9 for y, what operation must be applied to both sides in order to isolate the variable y?

Mathematics
1 answer:
inna [77]4 years ago
7 0

Answer:

y-4=9

The opposite of subtraction is addition, so you would have to add 4 to both sides:

y-4+4=9+4

y=13

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