20-04-2017
Mathematics

contestada

HELP!!! solve the following system:
y = x + 3
3x + y = 19

Respuesta :

21-04-2017

3x + (x+3) = 19
4x + 3 = 19
4x = 16
x = 4

y= x+3
y= 4+3
y= 7

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