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3 votes
2x-5y=9 y-3x=-7 solve by substitution

1 Answer

5 votes

x

=

2

and

y

=

1

Step-by-step explanation:

y

=

3

x

7

and

2

x

5

y

=

9

Substitute for

y

2

x

5

(

3

x

7

)

=

9

Simplify

2

x

15

x

+

35

=

9

Keep going and get

13

x

=

26

So

x

=

2

Now find

y

y

=

3

x

7

3

(

2

)

7

y

=

1

User Florangel
by
8.6k points

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