3x y 3 9x 3y 9 by substitution method

Asked by admin @ 16/08/2021 in Math viewed by 356 People

Solve with substitution method
3x-y=3,9x-3y=9

Answered by admin @ 16/08/2021

Hi mate

here is ur answer

3x-y=3........1
9x-3y=9..(divided by 3)
3x-y=3......2

3x=3-y
X=3-y/3

sub X in 1
3x-y=3
3(3-y/3)-y=3
3-y-y=3
-2y=3-3

y=0

sub y in 2

3x-y=3
3x-0=3
3x=3

X=1

I hope this will help you

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