Which doubles fact helps you solve 8+7=15? Write the number sentence
2 answers:
You can do 8 + 8 = 16 then minus 1 cuz thats how much you added
The double whould be 8 is 7 so 15 equals 7plus 8
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B
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x² - 4x - 7 = 0
(x - 2)² = 11
