Respuesta :
Answer:
[tex]y = 9[/tex]
Step-by-step explanation:
[tex]28 + 7y = 91 \\ 7y = 91 - 28 \\ 7y = 63 \\ \frac{7y}{7} = \frac{63}{7} \\ y = 9[/tex]
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