jeremy02 jeremy02

23-02-2015
Mathematics

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X+y=8 y=8+x solve the system of equations by graphing

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apologiabiology apologiabiology

23-02-2015

I can solve by subsituttion

x+y=8
y=8+x
subsitute 8+x for y
x+8+x=8
2x+8=8
subtract 8 from both sdies
2x=0
x=0
subsitute
0+y=8
y=8

x=0
y=8

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