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02-12-2016
Mathematics

contestada

solve each system of linear Equations x+y=5 x-3y=3

Respuesta :

02-12-2016

x+y=5 y=5-x

x-3y=3
x-3(5-x)=3
x-15+3x=3
4x=18
x=4.5

y=5-x
y=0.5

check
x+y=5 4.5+0.5=5
x-3y=3 4.5-1.5=3

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