Question

2x+3y=5,3x+4y=7 solve for x and y

Answer 1

Answer:

y=1/5,x=11/5

Step-by-step explanation:

BY ELEMINATON METHOD

2x+3y=5------(1)

3x+4y=7-------(2)

3 is multiply by (1)

3(2x+3y=5)

6x+9y=15--------(3)

2 is multiply by (2)

2(3x+4y=7)

6x+4y=14------(4)

subtract (2) from (1)

6x+9y=15

-6x+4y=14

-----------------

5y= 1

-----------------

y=1/5

putting the value in eq (1)

2x+3y=5

2x+3*1/5=5

2x+3/5=5

(10x+3)/5=5

10x+3=25

10x=25-3

10x=22

x=22/10

x=11/5