cameronbeaugh cameronbeaugh

03-02-2019
Mathematics

contestada

solve 3x-18=2y and 5x-6y=14 by elimination or substitution . SHOW ALL WORK!!!

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mathecoach mathecoach

03-02-2019

Answer:

3x - 18 = 2y

5x - 6y = 14

5x - 3*(2y) = 14

5x - 3*(3x - 18) = 14

5x - 9x + 54 = 14

-4x = -40

x = 10

3*10 - 18 = 2y

30 - 18 = 2y

12 = 2y

y = 6

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