Mathematics
LilKey
35

Use the substitution method to solve the system of equation.choose the correct ordered pair. Y=10x-9 y=x+18

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BritanyDollahite215

y=10x-9 , y=x+18  10x-9=x+18  9x-9=18  9x=27  x=3  y=10x-9  y=10 (3)-9  y=30-9  y=21  B. (3,21)Source(s): My Brain 

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