Math, asked by skazimi2598, 7 months ago

Solve the following pair of equations by elimination method
15
+
+
7

=10
5
+
-
2

= -1

Answers

Answered by krs1000024519
1

Answer:

Step-by-step explanation:

3

(

3

x

5

y

=

4

)

9

x

15

y

=

12

9x-2y=7  

9

x

2

y

=

7

                    ___________

                       - 13y  =  5  

                                              x=  

10

/

13

+

7

9

=

9

/

13

                         y=-5/13

Substitution,

3x = 5y + 4

3.(5y+4 )= 2y+7  

15

y

+

12

=

2

y

+

7

 

13

y

=

5

y

=

5

/

13

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