Respuesta :

701331
First step: (simplify) y+9+7y+63, Second step: (combine) 8y+72
texaschic101

Answer:

Step-by-step explanation:

y + 9 + 7(y + 9)...first we have to get rid of those parenthesis. we can do this by distributing the 7 thru the parenthesis.

y + 9 + 7y + 63

now lets gather our like terms..

y + 7y = 8y

63 + 9 = 72

so we have : 8y + 72 <===

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