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2 votes
What is the solution to this system of equations?

3x-2y=5
x+2y=7

x=_, y=_

User Tcanarchy
by
4.0k points

2 Answers

3 votes

Answer:

Explanation:

2 votes

Step 1) Solve the second equation for

x

:

x

+

3

y

=

5

x

+

3

y

3

y

=

5

3

y

x

+

0

=

5

3

y

x

=

5

3

y

Step 2) Substitute

5

3

y

for

x

in the first equation and solve for

y

:

3

(

5

3

y

)

2

y

=

7

15

9

y

2

y

=

7

15

11

y

=

7

15

15

11

y

=

15

+

7

0

11

y

=

22

11

y

=

22

11

y

11

=

22

11

11

y

11

=

2

y

=

2

Step 3) Substitute

2

for

y

in the solution to the second equation at the end of Step 1 and calculate x:

x=−5−(3×−2)

x=−5−(−6)

x=−5+6

x=1

The solution is x=1 and y=−2

User Artem Viter
by
2.8k points