KhingstonK674242 KhingstonK674242

03-11-2022
Mathematics

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solve the system by subsitution method

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AnnsleeA662861 AnnsleeA662861

03-11-2022

Substitute Y = 3X - 6

in second equation

-15X + 5•(3X - 6) = -30

Now solve for X, cancel parenthesis

use a(b+c) = ab + ac

-15X + 15 X - 30 = -30

. -30 = -30

Then we see that, have infinite solutions

In consecuence, ANSWER IS

OPTION D) (x , 3x - 6 )

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