Question

solve by substitution method 2x+3y=9,4x-5y=7​

Answer 1

Answer:

2x+3y=13 ------(1)

4x+5y=23 ------(2)

From equation (1)

2x+3y=13

y=

3

13−2x

substitute the value of y in equation (2)

4x+5y=23

4x+5(

3

13−2x

)=23

12x+65−10x=69

2x=69−65

2x=4

x=2

Then substitute the value of x in equation (1)

2(2)+3y=13

4+3y=13

3y=13−4

3y=9

y=3

Therefore solution is x=2 ans y=3

Step-by-step explanation:

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