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Dmitrij [34]
3 years ago
10

Solve 28 + 7y =91Y=.....​

Mathematics
2 answers:
Anna35 [415]3 years ago
8 0

Answer:

y = 9

Step-by-step explanation:

28 + 7y = 91 \\ 7y = 91 - 28 \\ 7y = 63 \\  \frac{7y}{7}  =  \frac{63}{7}  \\ y = 9

8090 [49]3 years ago
3 0

Answer:

Y=9

Step-by-step explanation:

28 + 7y =91

first subtract 28 from both sides

28-28+7y=91-28

7y= 63

then divide both sides by 7

7y/7=63/7

y=9

ANSWER CHECK

to see if the answer is correct substitute the answer you got for the variable

y=9

28 + 7(9)

multiply 7 and 9

7(9)=63

63+28= 91

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