klyde2201 klyde2201

25-09-2018
Mathematics

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Solving Systems By Substitution HELP WITH STEPS

Solving Systems By Substitution HELP WITH STEPS class=

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Kamikazeminem Kamikazeminem

25-09-2018

[tex]( - 3,2) \: is \: the \: answer \: you \: need.[/tex]

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25-09-2018

x + 3y = 3

x = -3y + 3

3y - 2x = 12

Substituting,

3y - 2(-3y + 3) = 12

3y + 6y - 6 = 12

9y = 18

y = 2

x = -3y + 3 = -3(2) + 3 = -3

Check: -3 + 3(2) = 3 good, 3(2) - 2(-3) = 12 good

Answer: (-3, 2)

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