Question

7x + 11y= 3 8x+y=15 solve with substitution method​

Answer 1

56x+88y=24
56x+7y=105
Y=-1
X=-8/7

Answer 2

Answer: x=2; y=-1

Step-by-step explanation:

Finding the value of y from eq 2 we get:

8x+y=15

y=15-8x

substituting the value y in the first equation we get

7x+11(15-8x)=3

7x+165 – 88x = 3

165-81x = 3

-81x = -162

x=2

y = 15-8x  

= 15-16  

= -1

So x=2 and y=-1