jaz279
01.12.2020 •
Mathematics
HELP ASAP! PLS
Translate the sentence into an equation.
Twice the difference of a number and 7 is equal to 3 .
Use the variable y for the unknown number.
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Ответ:
2(y-7) = 3
Step-by-step explanation:
Twice means multiply by 2.
The difference of a number and 7 means subtract a number/variable and 7.
Is equal to 3 means = 3.
2(y-7) = 3
Hope that helps.
Ответ:
B
Step-by-step explanation:
Because it'll be 1²+2×1-3=0
And -3²+2(-3)-3=9-6-3=0
So it's impossible