Question

solve for x and y :
7x +3y = 10x + 7y+6 =15x +11y+8​

Answer 1

Answer:

7x-10x-15x=7y-3y-11y=8-6

-18x=-7y=2

-18x=2,-7y=2

x=-2/18,y=-2/7

x=-1/9,y=-2/7

Answer 2

Step-by-step explanation:

7x+3y=10x+7y+6

7x-10x+3y-7y=6

-3x-4y=6

3x+4y=-6 equation 1

10x+7y+6=15x+11y+8

6-8=15x-10x+11y-7y

-2=5x+4y equation 2

equation 2- equation 1

5x+4y=-2

-3x-4y=6

ans=2x=4

x=2

substitute x value in equation 1

3*2+4y=-6

6+4y=-6

4y=-12

y=-12/3

y=-4