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01-03-2017
Mathematics

contestada

y+3=x
3x+4y=16

Find the solution using the substitution method.

Respuesta :

01-03-2017

to the beginning,we know y+3=x
then,substitute x into y
=>3(y+3)+4y=16
then,to solve y
7y=16-9
y=1
so,x=y+3=4

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