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Artist 52 [7]
3 years ago
13

Is 7 + square root of 5 equal to square root of 5 plus a number, what do you know about the number? Why?

Mathematics
1 answer:
storchak [24]3 years ago
4 0
The statement is true. The number is seven. I can find this through the commutative property of addition or plugging in the number and reversing the equation.

Key: a is 7, b is square root of five, c is solution, ? is what we're finding

Commutative: a + b = b + a

Plugging and Reversing: a + ? = c, c - a = b
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