yanmanuel2215
18.03.2021 •
Mathematics
three times the result of subtracting a certain number from seven give the same answer as adding 11 to the number. find the number
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Ответ:
3x-21=x+11
3x=x+11+21
3x=x+32
3x-x=32
2x=32
x=32/2
x=16
Ответ:
Both methods multiplied 5 and 34, but Jenna’s method used the distributive property to simplify the multiplication so she could do the math mentally. Mia’s method would require more complex multiplication.
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