Use substitution 9x-3y=9 3x-y=3

asked Jun 7, 2021 214k views

3 votes

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3 votes

Answer:

x=1

Explanation:

3x-y=3

y=3-3x

9x-3y=9

9x-3(3-3x)=9

9x - 9 + 9x=9

9x + 9x=9 + 9

18x=18

x=18÷18

x=1

Jagadish answered Jun 14, 2021

5.7k points

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