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31.03.2021 •
Mathematics
For which equation is y = 7 a solution?
A.) 7y = 1
B.) y - 26 = -19
C.) y + 7 = 0
D.) y - 2 = 9
Solved
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Ответ:
B
Step-by-step explanation:
y - 26 = -19
y + 26 - 26 = -19 + 26
y=7
Ответ:
7-26=-19
( y=7)
Hope it helps!
Ответ:
18
Step-by-step explanation:
make a ratio relation:
3 trainers : 12 dogs
x trainers : 72 dogs
3/12 = x/72
solve for x, and you get 18