14trixie 14trixie

02-10-2021
Mathematics

contestada

hi please i need the step bye step solution. thank you ♥

hi please i need the step bye step solution thank you class=

Respuesta :

850362264qq 850362264qq

02-10-2021

Answer:

40

Step-by-step explanation:

3, 6, 9...

120 = 3+(n-1)3

120 = 3+3n-3

120 = 3n

120 / 3 = 3n / 3

40 = n

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