Soracalf Soracalf

11-11-2020
Mathematics

contestada

if 5x+2y=20 and y=10, what is 3x?

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Respuesta :

kafleshristi2005 kafleshristi2005

11-11-2020

Answer:

3x = 0

Step-by-step explanation:

Given,

y = 10

now,

5x+2y = 20

or, 5x+2×10=20

or, 5x = 20-20

or, 5x = 0

or, x = 0/5

or, x = 0

Again,

3x = 3×0 =0

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